Home / 72,407,808.30-108,611,712.45-43,308,461.10

Finding the Fourth Proportional to 72,407,808.30, 108,611,712.45 and 43,308,461.10

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Solution

The fourth proportional to 72,407,808.30, 108,611,712.45 and 43,308,461.10 is: 64,962,691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,407,808.30 : 108,611,712.45 = 43,308,461.10 : x
  2. Step 2: Convert to fraction form
    72,407,808.30/108,611,712.45 = 43,308,461.10/x
  3. Step 3: Cross multiply
    72,407,808.30x = 108,611,712.45 × 43,308,461.10
  4. Step 4: Simplify right side
    72,407,808.30x = 4,703,806,123,645,211
  5. Step 5: Solve for x
    x = 4,703,806,123,645,211/72,407,808.30
  6. Step 6: Final answer
    x = 64,962,691.65

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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.