Home / 72,539,228.70-108,808,843.05-68,382,179.10

Finding the Fourth Proportional to 72,539,228.70, 108,808,843.05 and 68,382,179.10

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Solution

The fourth proportional to 72,539,228.70, 108,808,843.05 and 68,382,179.10 is: 102,573,268.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,539,228.70 : 108,808,843.05 = 68,382,179.10 : x
  2. Step 2: Convert to fraction form
    72,539,228.70/108,808,843.05 = 68,382,179.10/x
  3. Step 3: Cross multiply
    72,539,228.70x = 108,808,843.05 × 68,382,179.10
  4. Step 4: Simplify right side
    72,539,228.70x = 7,440,585,793,108,889
  5. Step 5: Solve for x
    x = 7,440,585,793,108,889/72,539,228.70
  6. Step 6: Final answer
    x = 102,573,268.65

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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.