Home / 10,781,038.20-16,171,557.30-4,387,999.80

Finding the Fourth Proportional to 10,781,038.20, 16,171,557.30 and 4,387,999.80

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Solution

The fourth proportional to 10,781,038.20, 16,171,557.30 and 4,387,999.80 is: 6,581,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781,038.20 : 16,171,557.30 = 4,387,999.80 : x
  2. Step 2: Convert to fraction form
    10,781,038.20/16,171,557.30 = 4,387,999.80/x
  3. Step 3: Cross multiply
    10,781,038.20x = 16,171,557.30 × 4,387,999.80
  4. Step 4: Simplify right side
    10,781,038.20x = 70,960,790,198,088.55
  5. Step 5: Solve for x
    x = 70,960,790,198,088.55/10,781,038.20
  6. Step 6: Final answer
    x = 6,581,999.70

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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.