Home / 12,472,675.20-18,723,009.60-9,645,321.60

Finding the Fourth Proportional to 12,472,675.20, 18,723,009.60 and 9,645,321.60

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Solution

The fourth proportional to 12,472,675.20, 18,723,009.60 and 9,645,321.60 is: 14,478,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472,675.20 : 18,723,009.60 = 9,645,321.60 : x
  2. Step 2: Convert to fraction form
    12,472,675.20/18,723,009.60 = 9,645,321.60/x
  3. Step 3: Cross multiply
    12,472,675.20x = 18,723,009.60 × 9,645,321.60
  4. Step 4: Simplify right side
    12,472,675.20x = 180,589,448,911,887.38
  5. Step 5: Solve for x
    x = 180,589,448,911,887.38/12,472,675.20
  6. Step 6: Final answer
    x = 14,478,806.35

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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.