Home / 72,490,964.60-108,736,446.90-69,704,046.20

Finding the Fourth Proportional to 72,490,964.60, 108,736,446.90 and 69,704,046.20

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Solution

The fourth proportional to 72,490,964.60, 108,736,446.90 and 69,704,046.20 is: 104,556,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,490,964.60 : 108,736,446.90 = 69,704,046.20 : x
  2. Step 2: Convert to fraction form
    72,490,964.60/108,736,446.90 = 69,704,046.20/x
  3. Step 3: Cross multiply
    72,490,964.60x = 108,736,446.90 × 69,704,046.20
  4. Step 4: Simplify right side
    72,490,964.60x = 7,579,370,318,341,448
  5. Step 5: Solve for x
    x = 7,579,370,318,341,448/72,490,964.60
  6. Step 6: Final answer
    x = 104,556,069.30

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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.