Home / 72,616,155.20-108,924,232.80-67,073,422.40

Finding the Fourth Proportional to 72,616,155.20, 108,924,232.80 and 67,073,422.40

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Solution

The fourth proportional to 72,616,155.20, 108,924,232.80 and 67,073,422.40 is: 100,610,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,616,155.20 : 108,924,232.80 = 67,073,422.40 : x
  2. Step 2: Convert to fraction form
    72,616,155.20/108,924,232.80 = 67,073,422.40/x
  3. Step 3: Cross multiply
    72,616,155.20x = 108,924,232.80 × 67,073,422.40
  4. Step 4: Simplify right side
    72,616,155.20x = 7,305,921,076,190,334
  5. Step 5: Solve for x
    x = 7,305,921,076,190,334/72,616,155.20
  6. Step 6: Final answer
    x = 100,610,133.60

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1.5x scale

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.