Home / 30,612,461.20-42,245,191.92-16,861,424.92

Finding the Fourth Proportional to 30,612,461.20, 42,245,191.92 and 16,861,424.92

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Solution

The fourth proportional to 30,612,461.20, 42,245,191.92 and 16,861,424.92 is: 23,268,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,612,461.20 : 42,245,191.92 = 16,861,424.92 : x
  2. Step 2: Convert to fraction form
    30,612,461.20/42,245,191.92 = 16,861,424.92/x
  3. Step 3: Cross multiply
    30,612,461.20x = 42,245,191.92 × 16,861,424.92
  4. Step 4: Simplify right side
    30,612,461.20x = 712,314,131,790,070.75
  5. Step 5: Solve for x
    x = 712,314,131,790,070.75/30,612,461.20
  6. Step 6: Final answer
    x = 23,268,763.89

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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.