Home / 72,096,869.40-108,229,284.90-43,375,435.80

Finding the Fourth Proportional to 72,096,869.40, 108,229,284.90 and 43,375,435.80

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Solution

The fourth proportional to 72,096,869.40, 108,229,284.90 and 43,375,435.80 is: 65,113,678.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,096,869.40 : 108,229,284.90 = 43,375,435.80 : x
  2. Step 2: Convert to fraction form
    72,096,869.40/108,229,284.90 = 43,375,435.80/x
  3. Step 3: Cross multiply
    72,096,869.40x = 108,229,284.90 × 43,375,435.80
  4. Step 4: Simplify right side
    72,096,869.40x = 4,694,492,398,859,859
  5. Step 5: Solve for x
    x = 4,694,492,398,859,859/72,096,869.40
  6. Step 6: Final answer
    x = 65,113,678.83

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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.