Home / 13,158,045.90-19,737,068.85-6,439,581.90

Finding the Fourth Proportional to 13,158,045.90, 19,737,068.85 and 6,439,581.90

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Solution

The fourth proportional to 13,158,045.90, 19,737,068.85 and 6,439,581.90 is: 9,659,372.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158,045.90 : 19,737,068.85 = 6,439,581.90 : x
  2. Step 2: Convert to fraction form
    13,158,045.90/19,737,068.85 = 6,439,581.90/x
  3. Step 3: Cross multiply
    13,158,045.90x = 19,737,068.85 × 6,439,581.90
  4. Step 4: Simplify right side
    13,158,045.90x = 127,098,471,325,513.83
  5. Step 5: Solve for x
    x = 127,098,471,325,513.83/13,158,045.90
  6. Step 6: Final answer
    x = 9,659,372.85

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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.