Home / 28,565,622.91-42,842,854.95-9,129,635.33

Finding the Fourth Proportional to 28,565,622.91, 42,842,854.95 and 9,129,635.33

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Solution

The fourth proportional to 28,565,622.91, 42,842,854.95 and 9,129,635.33 is: 13,692,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,565,622.91 : 42,842,854.95 = 9,129,635.33 : x
  2. Step 2: Convert to fraction form
    28,565,622.91/42,842,854.95 = 9,129,635.33/x
  3. Step 3: Cross multiply
    28,565,622.91x = 42,842,854.95 × 9,129,635.33
  4. Step 4: Simplify right side
    28,565,622.91x = 391,139,642,143,937.19
  5. Step 5: Solve for x
    x = 391,139,642,143,937.19/28,565,622.91
  6. Step 6: Final answer
    x = 13,692,669.80

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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.