Home / 10,404,429.90-15,606,644.85-7,885,005.90

Finding the Fourth Proportional to 10,404,429.90, 15,606,644.85 and 7,885,005.90

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Solution

The fourth proportional to 10,404,429.90, 15,606,644.85 and 7,885,005.90 is: 11,827,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404,429.90 : 15,606,644.85 = 7,885,005.90 : x
  2. Step 2: Convert to fraction form
    10,404,429.90/15,606,644.85 = 7,885,005.90/x
  3. Step 3: Cross multiply
    10,404,429.90x = 15,606,644.85 × 7,885,005.90
  4. Step 4: Simplify right side
    10,404,429.90x = 123,058,486,721,454.62
  5. Step 5: Solve for x
    x = 123,058,486,721,454.62/10,404,429.90
  6. Step 6: Final answer
    x = 11,827,508.85

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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.