Home / 10,781,446.40-16,172,169.60-9,157,817.60

Finding the Fourth Proportional to 10,781,446.40, 16,172,169.60 and 9,157,817.60

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Solution

The fourth proportional to 10,781,446.40, 16,172,169.60 and 9,157,817.60 is: 13,736,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781,446.40 : 16,172,169.60 = 9,157,817.60 : x
  2. Step 2: Convert to fraction form
    10,781,446.40/16,172,169.60 = 9,157,817.60/x
  3. Step 3: Cross multiply
    10,781,446.40x = 16,172,169.60 × 9,157,817.60
  4. Step 4: Simplify right side
    10,781,446.40x = 148,101,779,393,064.94
  5. Step 5: Solve for x
    x = 148,101,779,393,064.94/10,781,446.40
  6. Step 6: Final answer
    x = 13,736,726.40

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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.