Home / 28,007,581.83-42,012,686.02-13,613,491.59

Finding the Fourth Proportional to 28,007,581.83, 42,012,686.02 and 13,613,491.59

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Solution

The fourth proportional to 28,007,581.83, 42,012,686.02 and 13,613,491.59 is: 20,420,875.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007,581.83 : 42,012,686.02 = 13,613,491.59 : x
  2. Step 2: Convert to fraction form
    28,007,581.83/42,012,686.02 = 13,613,491.59/x
  3. Step 3: Cross multiply
    28,007,581.83x = 42,012,686.02 × 13,613,491.59
  4. Step 4: Simplify right side
    28,007,581.83x = 571,939,347,596,517.25
  5. Step 5: Solve for x
    x = 571,939,347,596,517.25/28,007,581.83
  6. Step 6: Final answer
    x = 20,420,875.72

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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.