Home / 87,717,500.17-121,012,152.12-52,890,842.83

Finding the Fourth Proportional to 87,717,500.17, 121,012,152.12 and 52,890,842.83

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Solution

The fourth proportional to 87,717,500.17, 121,012,152.12 and 52,890,842.83 is: 72,966,451.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,717,500.17 : 121,012,152.12 = 52,890,842.83 : x
  2. Step 2: Convert to fraction form
    87,717,500.17/121,012,152.12 = 52,890,842.83/x
  3. Step 3: Cross multiply
    87,717,500.17x = 121,012,152.12 × 52,890,842.83
  4. Step 4: Simplify right side
    87,717,500.17x = 6,400,434,718,298,971
  5. Step 5: Solve for x
    x = 6,400,434,718,298,971/87,717,500.17
  6. Step 6: Final answer
    x = 72,966,451.46

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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.