Home / 12,462,402.70-18,693,604.05-7,654,501.90

Finding the Fourth Proportional to 12,462,402.70, 18,693,604.05 and 7,654,501.90

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Solution

The fourth proportional to 12,462,402.70, 18,693,604.05 and 7,654,501.90 is: 11,481,752.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,402.70 : 18,693,604.05 = 7,654,501.90 : x
  2. Step 2: Convert to fraction form
    12,462,402.70/18,693,604.05 = 7,654,501.90/x
  3. Step 3: Cross multiply
    12,462,402.70x = 18,693,604.05 × 7,654,501.90
  4. Step 4: Simplify right side
    12,462,402.70x = 143,090,227,718,572.72
  5. Step 5: Solve for x
    x = 143,090,227,718,572.72/12,462,402.70
  6. Step 6: Final answer
    x = 11,481,752.85

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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.