Home / 21,558,879.60-32,342,812.20-7,186,412.40

Finding the Fourth Proportional to 21,558,879.60, 32,342,812.20 and 7,186,412.40

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Solution

The fourth proportional to 21,558,879.60, 32,342,812.20 and 7,186,412.40 is: 10,781,116.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558,879.60 : 32,342,812.20 = 7,186,412.40 : x
  2. Step 2: Convert to fraction form
    21,558,879.60/32,342,812.20 = 7,186,412.40/x
  3. Step 3: Cross multiply
    21,558,879.60x = 32,342,812.20 × 7,186,412.40
  4. Step 4: Simplify right side
    21,558,879.60x = 232,428,786,644,951.28
  5. Step 5: Solve for x
    x = 232,428,786,644,951.28/21,558,879.60
  6. Step 6: Final answer
    x = 10,781,116.22

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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.