Home / 72,532,644.60-108,798,966.90-68,277,617.40

Finding the Fourth Proportional to 72,532,644.60, 108,798,966.90 and 68,277,617.40

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Solution

The fourth proportional to 72,532,644.60, 108,798,966.90 and 68,277,617.40 is: 102,416,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,532,644.60 : 108,798,966.90 = 68,277,617.40 : x
  2. Step 2: Convert to fraction form
    72,532,644.60/108,798,966.90 = 68,277,617.40/x
  3. Step 3: Cross multiply
    72,532,644.60x = 108,798,966.90 × 68,277,617.40
  4. Step 4: Simplify right side
    72,532,644.60x = 7,428,534,235,513,465
  5. Step 5: Solve for x
    x = 7,428,534,235,513,465/72,532,644.60
  6. Step 6: Final answer
    x = 102,416,426.10

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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.