Home / 72,181,808.10-108,272,712.15-69,630,891.30

Finding the Fourth Proportional to 72,181,808.10, 108,272,712.15 and 69,630,891.30

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Solution

The fourth proportional to 72,181,808.10, 108,272,712.15 and 69,630,891.30 is: 104,446,336.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,181,808.10 : 108,272,712.15 = 69,630,891.30 : x
  2. Step 2: Convert to fraction form
    72,181,808.10/108,272,712.15 = 69,630,891.30/x
  3. Step 3: Cross multiply
    72,181,808.10x = 108,272,712.15 × 69,630,891.30
  4. Step 4: Simplify right side
    72,181,808.10x = 7,539,125,450,472,839
  5. Step 5: Solve for x
    x = 7,539,125,450,472,839/72,181,808.10
  6. Step 6: Final answer
    x = 104,446,336.95

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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.