Home / 12,512,809.91-18,762,372.61-9,935,669.44

Finding the Fourth Proportional to 12,512,809.91, 18,762,372.61 and 9,935,669.44

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Solution

The fourth proportional to 12,512,809.91, 18,762,372.61 and 9,935,669.44 is: 14,898,071.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512,809.91 : 18,762,372.61 = 9,935,669.44 : x
  2. Step 2: Convert to fraction form
    12,512,809.91/18,762,372.61 = 9,935,669.44/x
  3. Step 3: Cross multiply
    12,512,809.91x = 18,762,372.61 × 9,935,669.44
  4. Step 4: Simplify right side
    12,512,809.91x = 186,416,732,163,070.03
  5. Step 5: Solve for x
    x = 186,416,732,163,070.03/12,512,809.91
  6. Step 6: Final answer
    x = 14,898,071.14

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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.