Home / 10,520,167.20-15,779,084.40-8,623,600.80

Finding the Fourth Proportional to 10,520,167.20, 15,779,084.40 and 8,623,600.80

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Solution

The fourth proportional to 10,520,167.20, 15,779,084.40 and 8,623,600.80 is: 12,934,445.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520,167.20 : 15,779,084.40 = 8,623,600.80 : x
  2. Step 2: Convert to fraction form
    10,520,167.20/15,779,084.40 = 8,623,600.80/x
  3. Step 3: Cross multiply
    10,520,167.20x = 15,779,084.40 × 8,623,600.80
  4. Step 4: Simplify right side
    10,520,167.20x = 136,072,524,855,107.53
  5. Step 5: Solve for x
    x = 136,072,524,855,107.53/10,520,167.20
  6. Step 6: Final answer
    x = 12,934,445.08

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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.