Home / 72,511,410.80-108,767,116.20-66,464,793.20

Finding the Fourth Proportional to 72,511,410.80, 108,767,116.20 and 66,464,793.20

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Solution

The fourth proportional to 72,511,410.80, 108,767,116.20 and 66,464,793.20 is: 99,697,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,511,410.80 : 108,767,116.20 = 66,464,793.20 : x
  2. Step 2: Convert to fraction form
    72,511,410.80/108,767,116.20 = 66,464,793.20/x
  3. Step 3: Cross multiply
    72,511,410.80x = 108,767,116.20 × 66,464,793.20
  4. Step 4: Simplify right side
    72,511,410.80x = 7,229,183,885,193,370
  5. Step 5: Solve for x
    x = 7,229,183,885,193,370/72,511,410.80
  6. Step 6: Final answer
    x = 99,697,189.80

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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.