Home / 91,315,822.38-126,008,841.15-52,152,192.78

Finding the Fourth Proportional to 91,315,822.38, 126,008,841.15 and 52,152,192.78

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Solution

The fourth proportional to 91,315,822.38, 126,008,841.15 and 52,152,192.78 is: 71,966,031.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,315,822.38 : 126,008,841.15 = 52,152,192.78 : x
  2. Step 2: Convert to fraction form
    91,315,822.38/126,008,841.15 = 52,152,192.78/x
  3. Step 3: Cross multiply
    91,315,822.38x = 126,008,841.15 × 52,152,192.78
  4. Step 4: Simplify right side
    91,315,822.38x = 6,571,637,375,639,197
  5. Step 5: Solve for x
    x = 6,571,637,375,639,197/91,315,822.38
  6. Step 6: Final answer
    x = 71,966,031.78

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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.