Home / 138,965,401.22-208,457,812.10-57,088,407.74

Finding the Fourth Proportional to 138,965,401.22, 208,457,812.10 and 57,088,407.74

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Solution

The fourth proportional to 138,965,401.22, 208,457,812.10 and 57,088,407.74 is: 85,636,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,965,401.22 : 208,457,812.10 = 57,088,407.74 : x
  2. Step 2: Convert to fraction form
    138,965,401.22/208,457,812.10 = 57,088,407.74/x
  3. Step 3: Cross multiply
    138,965,401.22x = 208,457,812.10 × 57,088,407.74
  4. Step 4: Simplify right side
    138,965,401.22x = 11,900,524,572,853,538
  5. Step 5: Solve for x
    x = 11,900,524,572,853,538/138,965,401.22
  6. Step 6: Final answer
    x = 85,636,600.68

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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.