Home / 138,707,869.49-207,772,272.55-83,199,666.74

Finding the Fourth Proportional to 138,707,869.49, 207,772,272.55 and 83,199,666.74

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Solution

The fourth proportional to 138,707,869.49, 207,772,272.55 and 83,199,666.74 is: 124,625,833.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,707,869.49 : 207,772,272.55 = 83,199,666.74 : x
  2. Step 2: Convert to fraction form
    138,707,869.49/207,772,272.55 = 83,199,666.74/x
  3. Step 3: Cross multiply
    138,707,869.49x = 207,772,272.55 × 83,199,666.74
  4. Step 4: Simplify right side
    138,707,869.49x = 17,286,583,833,037,588
  5. Step 5: Solve for x
    x = 17,286,583,833,037,588/138,707,869.49
  6. Step 6: Final answer
    x = 124,625,833.39

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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.