Home / 80,341,715.80-120,512,573.70-42,014,978.20

Finding the Fourth Proportional to 80,341,715.80, 120,512,573.70 and 42,014,978.20

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Solution

The fourth proportional to 80,341,715.80, 120,512,573.70 and 42,014,978.20 is: 63,022,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,341,715.80 : 120,512,573.70 = 42,014,978.20 : x
  2. Step 2: Convert to fraction form
    80,341,715.80/120,512,573.70 = 42,014,978.20/x
  3. Step 3: Cross multiply
    80,341,715.80x = 120,512,573.70 × 42,014,978.20
  4. Step 4: Simplify right side
    80,341,715.80x = 5,063,333,156,831,394
  5. Step 5: Solve for x
    x = 5,063,333,156,831,394/80,341,715.80
  6. Step 6: Final answer
    x = 63,022,467.30

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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.