Home / 1,021,620,526.14-1,409,836,272.10-551,721,801.80

Finding the Fourth Proportional to 1,021,620,526.14, 1,409,836,272.10 and 551,721,801.80

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Solution

The fourth proportional to 1,021,620,526.14, 1,409,836,272.10 and 551,721,801.80 is: 761,376,057.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,620,526.14 : 1,409,836,272.10 = 551,721,801.80 : x
  2. Step 2: Convert to fraction form
    1,021,620,526.14/1,409,836,272.10 = 551,721,801.80/x
  3. Step 3: Cross multiply
    1,021,620,526.14x = 1,409,836,272.10 × 551,721,801.80
  4. Step 4: Simplify right side
    1,021,620,526.14x = 777,837,408,286,006,912
  5. Step 5: Solve for x
    x = 777,837,408,286,006,912/1,021,620,526.14
  6. Step 6: Final answer
    x = 761,376,057.34

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Half scale
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Double scale
Find fourth proportional to 1,021,620,527.14, 1,409,836,273.48 and 551,721,802.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.