Home / 931,842,982.17-1,285,970,223.47-514,182,171.06

Finding the Fourth Proportional to 931,842,982.17, 1,285,970,223.47 and 514,182,171.06

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Solution

The fourth proportional to 931,842,982.17, 1,285,970,223.47 and 514,182,171.06 is: 709,586,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,842,982.17 : 1,285,970,223.47 = 514,182,171.06 : x
  2. Step 2: Convert to fraction form
    931,842,982.17/1,285,970,223.47 = 514,182,171.06/x
  3. Step 3: Cross multiply
    931,842,982.17x = 1,285,970,223.47 × 514,182,171.06
  4. Step 4: Simplify right side
    931,842,982.17x = 661,222,961,419,747,072
  5. Step 5: Solve for x
    x = 661,222,961,419,747,072/931,842,982.17
  6. Step 6: Final answer
    x = 709,586,243.68

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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.