Home / 120,966,145.20-181,449,217.80-40,187,113.20

Finding the Fourth Proportional to 120,966,145.20, 181,449,217.80 and 40,187,113.20

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Solution

The fourth proportional to 120,966,145.20, 181,449,217.80 and 40,187,113.20 is: 60,280,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,966,145.20 : 181,449,217.80 = 40,187,113.20 : x
  2. Step 2: Convert to fraction form
    120,966,145.20/181,449,217.80 = 40,187,113.20/x
  3. Step 3: Cross multiply
    120,966,145.20x = 181,449,217.80 × 40,187,113.20
  4. Step 4: Simplify right side
    120,966,145.20x = 7,291,920,255,780,056
  5. Step 5: Solve for x
    x = 7,291,920,255,780,056/120,966,145.20
  6. Step 6: Final answer
    x = 60,280,669.80

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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.