Home / 12,402,451.30-18,561,686.55-10,890,796.90

Finding the Fourth Proportional to 12,402,451.30, 18,561,686.55 and 10,890,796.90

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Solution

The fourth proportional to 12,402,451.30, 18,561,686.55 and 10,890,796.90 is: 16,299,322.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402,451.30 : 18,561,686.55 = 10,890,796.90 : x
  2. Step 2: Convert to fraction form
    12,402,451.30/18,561,686.55 = 10,890,796.90/x
  3. Step 3: Cross multiply
    12,402,451.30x = 18,561,686.55 × 10,890,796.90
  4. Step 4: Simplify right side
    12,402,451.30x = 202,151,558,337,511.72
  5. Step 5: Solve for x
    x = 202,151,558,337,511.72/12,402,451.30
  6. Step 6: Final answer
    x = 16,299,322.89

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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.