Home / 10,656,139.20-15,984,208.80-5,554,305.60

Finding the Fourth Proportional to 10,656,139.20, 15,984,208.80 and 5,554,305.60

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Solution

The fourth proportional to 10,656,139.20, 15,984,208.80 and 5,554,305.60 is: 8,331,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656,139.20 : 15,984,208.80 = 5,554,305.60 : x
  2. Step 2: Convert to fraction form
    10,656,139.20/15,984,208.80 = 5,554,305.60/x
  3. Step 3: Cross multiply
    10,656,139.20x = 15,984,208.80 × 5,554,305.60
  4. Step 4: Simplify right side
    10,656,139.20x = 88,781,180,449,409.28
  5. Step 5: Solve for x
    x = 88,781,180,449,409.28/10,656,139.20
  6. Step 6: Final answer
    x = 8,331,458.40

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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.