Home / 21,553,990.92-32,313,816-12,445,748.28

Finding the Fourth Proportional to 21,553,990.92, 32,313,816 and 12,445,748.28

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Solution

The fourth proportional to 21,553,990.92, 32,313,816 and 12,445,748.28 is: 18,658,707.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553,990.92 : 32,313,816 = 12,445,748.28 : x
  2. Step 2: Convert to fraction form
    21,553,990.92/32,313,816 = 12,445,748.28/x
  3. Step 3: Cross multiply
    21,553,990.92x = 32,313,816 × 12,445,748.28
  4. Step 4: Simplify right side
    21,553,990.92x = 402,169,619,902,236.44
  5. Step 5: Solve for x
    x = 402,169,619,902,236.44/21,553,990.92
  6. Step 6: Final answer
    x = 18,658,707.87

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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.