Home / 12,951,331.60-19,421,748.60-4,427,280.40

Finding the Fourth Proportional to 12,951,331.60, 19,421,748.60 and 4,427,280.40

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Solution

The fourth proportional to 12,951,331.60, 19,421,748.60 and 4,427,280.40 is: 6,639,126.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951,331.60 : 19,421,748.60 = 4,427,280.40 : x
  2. Step 2: Convert to fraction form
    12,951,331.60/19,421,748.60 = 4,427,280.40/x
  3. Step 3: Cross multiply
    12,951,331.60x = 19,421,748.60 × 4,427,280.40
  4. Step 4: Simplify right side
    12,951,331.60x = 85,985,526,910,507.45
  5. Step 5: Solve for x
    x = 85,985,526,910,507.45/12,951,331.60
  6. Step 6: Final answer
    x = 6,639,126.35

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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.