Home / 79,740,775.86-119,614,965.72-38,751,381.96

Finding the Fourth Proportional to 79,740,775.86, 119,614,965.72 and 38,751,381.96

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Solution

The fourth proportional to 79,740,775.86, 119,614,965.72 and 38,751,381.96 is: 58,128,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,740,775.86 : 119,614,965.72 = 38,751,381.96 : x
  2. Step 2: Convert to fraction form
    79,740,775.86/119,614,965.72 = 38,751,381.96/x
  3. Step 3: Cross multiply
    79,740,775.86x = 119,614,965.72 × 38,751,381.96
  4. Step 4: Simplify right side
    79,740,775.86x = 4,635,245,224,748,026
  5. Step 5: Solve for x
    x = 4,635,245,224,748,026/79,740,775.86
  6. Step 6: Final answer
    x = 58,128,920.55

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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.