Home / 72,529,320.60-108,793,980.90-68,274,293.40

Finding the Fourth Proportional to 72,529,320.60, 108,793,980.90 and 68,274,293.40

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Solution

The fourth proportional to 72,529,320.60, 108,793,980.90 and 68,274,293.40 is: 102,411,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,529,320.60 : 108,793,980.90 = 68,274,293.40 : x
  2. Step 2: Convert to fraction form
    72,529,320.60/108,793,980.90 = 68,274,293.40/x
  3. Step 3: Cross multiply
    72,529,320.60x = 108,793,980.90 × 68,274,293.40
  4. Step 4: Simplify right side
    72,529,320.60x = 7,427,832,172,120,597
  5. Step 5: Solve for x
    x = 7,427,832,172,120,597/72,529,320.60
  6. Step 6: Final answer
    x = 102,411,440.10

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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.