Home / 120,998,073.20-181,497,109.80-40,208,543.60

Finding the Fourth Proportional to 120,998,073.20, 181,497,109.80 and 40,208,543.60

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Solution

The fourth proportional to 120,998,073.20, 181,497,109.80 and 40,208,543.60 is: 60,312,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,998,073.20 : 181,497,109.80 = 40,208,543.60 : x
  2. Step 2: Convert to fraction form
    120,998,073.20/181,497,109.80 = 40,208,543.60/x
  3. Step 3: Cross multiply
    120,998,073.20x = 181,497,109.80 × 40,208,543.60
  4. Step 4: Simplify right side
    120,998,073.20x = 7,297,734,452,667,288
  5. Step 5: Solve for x
    x = 7,297,734,452,667,288/120,998,073.20
  6. Step 6: Final answer
    x = 60,312,815.40

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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.