Home / 1,021,620,525.66-1,409,836,271.47-551,721,801.38

Finding the Fourth Proportional to 1,021,620,525.66, 1,409,836,271.47 and 551,721,801.38

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Solution

The fourth proportional to 1,021,620,525.66, 1,409,836,271.47 and 551,721,801.38 is: 761,376,056.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,620,525.66 : 1,409,836,271.47 = 551,721,801.38 : x
  2. Step 2: Convert to fraction form
    1,021,620,525.66/1,409,836,271.47 = 551,721,801.38/x
  3. Step 3: Cross multiply
    1,021,620,525.66x = 1,409,836,271.47 × 551,721,801.38
  4. Step 4: Simplify right side
    1,021,620,525.66x = 777,837,407,337,862,656
  5. Step 5: Solve for x
    x = 777,837,407,337,862,656/1,021,620,525.66
  6. Step 6: Final answer
    x = 761,376,056.77

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Half scale
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Double scale
Find fourth proportional to 1,021,620,526.66, 1,409,836,272.85 and 551,721,802.38
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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.