Home / 120,860,143.20-181,290,214.80-40,070,613.60

Finding the Fourth Proportional to 120,860,143.20, 181,290,214.80 and 40,070,613.60

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Solution

The fourth proportional to 120,860,143.20, 181,290,214.80 and 40,070,613.60 is: 60,105,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,860,143.20 : 181,290,214.80 = 40,070,613.60 : x
  2. Step 2: Convert to fraction form
    120,860,143.20/181,290,214.80 = 40,070,613.60/x
  3. Step 3: Cross multiply
    120,860,143.20x = 181,290,214.80 × 40,070,613.60
  4. Step 4: Simplify right side
    120,860,143.20x = 7,264,410,146,711,802
  5. Step 5: Solve for x
    x = 7,264,410,146,711,802/120,860,143.20
  6. Step 6: Final answer
    x = 60,105,920.40

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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.