Home / 12,478,722.70-18,732,080.85-9,651,369.10

Finding the Fourth Proportional to 12,478,722.70, 18,732,080.85 and 9,651,369.10

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Solution

The fourth proportional to 12,478,722.70, 18,732,080.85 and 9,651,369.10 is: 14,487,879.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,722.70 : 18,732,080.85 = 9,651,369.10 : x
  2. Step 2: Convert to fraction form
    12,478,722.70/18,732,080.85 = 9,651,369.10/x
  3. Step 3: Cross multiply
    12,478,722.70x = 18,732,080.85 × 9,651,369.10
  4. Step 4: Simplify right side
    12,478,722.70x = 180,790,226,294,391.75
  5. Step 5: Solve for x
    x = 180,790,226,294,391.75/12,478,722.70
  6. Step 6: Final answer
    x = 14,487,879.14

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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.