Home / 260,367,972.60-390,551,958.90-123,638,832.12

Finding the Fourth Proportional to 260,367,972.60, 390,551,958.90 and 123,638,832.12

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Solution

The fourth proportional to 260,367,972.60, 390,551,958.90 and 123,638,832.12 is: 185,458,248.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,367,972.60 : 390,551,958.90 = 123,638,832.12 : x
  2. Step 2: Convert to fraction form
    260,367,972.60/390,551,958.90 = 123,638,832.12/x
  3. Step 3: Cross multiply
    260,367,972.60x = 390,551,958.90 × 123,638,832.12
  4. Step 4: Simplify right side
    260,367,972.60x = 48,287,388,080,574,240
  5. Step 5: Solve for x
    x = 48,287,388,080,574,240/260,367,972.60
  6. Step 6: Final answer
    x = 185,458,248.18

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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.