Home / 42,154,798.28-58,155,808.26-28,220,642.75

Finding the Fourth Proportional to 42,154,798.28, 58,155,808.26 and 28,220,642.75

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Solution

The fourth proportional to 42,154,798.28, 58,155,808.26 and 28,220,642.75 is: 38,932,561.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154,798.28 : 58,155,808.26 = 28,220,642.75 : x
  2. Step 2: Convert to fraction form
    42,154,798.28/58,155,808.26 = 28,220,642.75/x
  3. Step 3: Cross multiply
    42,154,798.28x = 58,155,808.26 × 28,220,642.75
  4. Step 4: Simplify right side
    42,154,798.28x = 1,641,194,288,508,308.50
  5. Step 5: Solve for x
    x = 1,641,194,288,508,308.50/42,154,798.28
  6. Step 6: Final answer
    x = 38,932,561.79

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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.