Home / 72,901,875.60-109,365,060.60-21,789,061.20

Finding the Fourth Proportional to 72,901,875.60, 109,365,060.60 and 21,789,061.20

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Solution

The fourth proportional to 72,901,875.60, 109,365,060.60 and 21,789,061.20 is: 32,687,252.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,901,875.60 : 109,365,060.60 = 21,789,061.20 : x
  2. Step 2: Convert to fraction form
    72,901,875.60/109,365,060.60 = 21,789,061.20/x
  3. Step 3: Cross multiply
    72,901,875.60x = 109,365,060.60 × 21,789,061.20
  4. Step 4: Simplify right side
    72,901,875.60x = 2,382,961,998,555,108.50
  5. Step 5: Solve for x
    x = 2,382,961,998,555,108.50/72,901,875.60
  6. Step 6: Final answer
    x = 32,687,252.27

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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.