Home / 76,960,695.20-115,441,042.80-47,735,376.80

Finding the Fourth Proportional to 76,960,695.20, 115,441,042.80 and 47,735,376.80

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Solution

The fourth proportional to 76,960,695.20, 115,441,042.80 and 47,735,376.80 is: 71,603,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,960,695.20 : 115,441,042.80 = 47,735,376.80 : x
  2. Step 2: Convert to fraction form
    76,960,695.20/115,441,042.80 = 47,735,376.80/x
  3. Step 3: Cross multiply
    76,960,695.20x = 115,441,042.80 × 47,735,376.80
  4. Step 4: Simplify right side
    76,960,695.20x = 5,510,621,676,242,927
  5. Step 5: Solve for x
    x = 5,510,621,676,242,927/76,960,695.20
  6. Step 6: Final answer
    x = 71,603,065.20

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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.