Home / 13,902,956.10-20,854,434.15-8,220,255.30

Finding the Fourth Proportional to 13,902,956.10, 20,854,434.15 and 8,220,255.30

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Solution

The fourth proportional to 13,902,956.10, 20,854,434.15 and 8,220,255.30 is: 12,330,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902,956.10 : 20,854,434.15 = 8,220,255.30 : x
  2. Step 2: Convert to fraction form
    13,902,956.10/20,854,434.15 = 8,220,255.30/x
  3. Step 3: Cross multiply
    13,902,956.10x = 20,854,434.15 × 8,220,255.30
  4. Step 4: Simplify right side
    13,902,956.10x = 171,428,772,850,038.47
  5. Step 5: Solve for x
    x = 171,428,772,850,038.47/13,902,956.10
  6. Step 6: Final answer
    x = 12,330,382.95

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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.