Home / 78,702,208,266.30-118,080,522,178.65-75,981,230,346.30

Finding the Fourth Proportional to 78,702,208,266.30, 118,080,522,178.65 and 75,981,230,346.30

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Solution

The fourth proportional to 78,702,208,266.30, 118,080,522,178.65 and 75,981,230,346.30 is: 113,998,114,572.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,702,208,266.30 : 118,080,522,178.65 = 75,981,230,346.30 : x
  2. Step 2: Convert to fraction form
    78,702,208,266.30/118,080,522,178.65 = 75,981,230,346.30/x
  3. Step 3: Cross multiply
    78,702,208,266.30x = 118,080,522,178.65 × 75,981,230,346.30
  4. Step 4: Simplify right side
    78,702,208,266.30x = 8,971,903,355,067,391,016,960
  5. Step 5: Solve for x
    x = 8,971,903,355,067,391,016,960/78,702,208,266.30
  6. Step 6: Final answer
    x = 113,998,114,572.72

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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.