Home / 76,722,578.42-115,156,625.23-47,487,985.34

Finding the Fourth Proportional to 76,722,578.42, 115,156,625.23 and 47,487,985.34

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Solution

The fourth proportional to 76,722,578.42, 115,156,625.23 and 47,487,985.34 is: 71,277,011.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,722,578.42 : 115,156,625.23 = 47,487,985.34 : x
  2. Step 2: Convert to fraction form
    76,722,578.42/115,156,625.23 = 47,487,985.34/x
  3. Step 3: Cross multiply
    76,722,578.42x = 115,156,625.23 × 47,487,985.34
  4. Step 4: Simplify right side
    76,722,578.42x = 5,468,556,130,726,115
  5. Step 5: Solve for x
    x = 5,468,556,130,726,115/76,722,578.42
  6. Step 6: Final answer
    x = 71,277,011.84

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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.