Home / 138,752,917.94-207,902,321.31-83,999,547.02

Finding the Fourth Proportional to 138,752,917.94, 207,902,321.31 and 83,999,547.02

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Solution

The fourth proportional to 138,752,917.94, 207,902,321.31 and 83,999,547.02 is: 125,861,863.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,752,917.94 : 207,902,321.31 = 83,999,547.02 : x
  2. Step 2: Convert to fraction form
    138,752,917.94/207,902,321.31 = 83,999,547.02/x
  3. Step 3: Cross multiply
    138,752,917.94x = 207,902,321.31 × 83,999,547.02
  4. Step 4: Simplify right side
    138,752,917.94x = 17,463,700,814,446,492
  5. Step 5: Solve for x
    x = 17,463,700,814,446,492/138,752,917.94
  6. Step 6: Final answer
    x = 125,861,863.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.