Home / 1,021,620,526.79-1,409,836,273.02-551,721,802.50

Finding the Fourth Proportional to 1,021,620,526.79, 1,409,836,273.02 and 551,721,802.50

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Solution

The fourth proportional to 1,021,620,526.79, 1,409,836,273.02 and 551,721,802.50 is: 761,376,058.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,620,526.79 : 1,409,836,273.02 = 551,721,802.50 : x
  2. Step 2: Convert to fraction form
    1,021,620,526.79/1,409,836,273.02 = 551,721,802.50/x
  3. Step 3: Cross multiply
    1,021,620,526.79x = 1,409,836,273.02 × 551,721,802.50
  4. Step 4: Simplify right side
    1,021,620,526.79x = 777,837,409,780,476,544
  5. Step 5: Solve for x
    x = 777,837,409,780,476,544/1,021,620,526.79
  6. Step 6: Final answer
    x = 761,376,058.32

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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.