Home / 76,961,327.20-115,441,990.80-47,736,008.80

Finding the Fourth Proportional to 76,961,327.20, 115,441,990.80 and 47,736,008.80

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Solution

The fourth proportional to 76,961,327.20, 115,441,990.80 and 47,736,008.80 is: 71,604,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,961,327.20 : 115,441,990.80 = 47,736,008.80 : x
  2. Step 2: Convert to fraction form
    76,961,327.20/115,441,990.80 = 47,736,008.80/x
  3. Step 3: Cross multiply
    76,961,327.20x = 115,441,990.80 × 47,736,008.80
  4. Step 4: Simplify right side
    76,961,327.20x = 5,510,739,888,718,319
  5. Step 5: Solve for x
    x = 5,510,739,888,718,319/76,961,327.20
  6. Step 6: Final answer
    x = 71,604,013.20

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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.