Home / 121,566,578.28-168,044,614.86-108,465,602.76

Finding the Fourth Proportional to 121,566,578.28, 168,044,614.86 and 108,465,602.76

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Solution

The fourth proportional to 121,566,578.28, 168,044,614.86 and 108,465,602.76 is: 149,934,798.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,566,578.28 : 168,044,614.86 = 108,465,602.76 : x
  2. Step 2: Convert to fraction form
    121,566,578.28/168,044,614.86 = 108,465,602.76/x
  3. Step 3: Cross multiply
    121,566,578.28x = 168,044,614.86 × 108,465,602.76
  4. Step 4: Simplify right side
    121,566,578.28x = 18,227,060,441,361,956
  5. Step 5: Solve for x
    x = 18,227,060,441,361,956/121,566,578.28
  6. Step 6: Final answer
    x = 149,934,798.69

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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.