Home / 257,438,793.60-386,140,475.70-82,559,275.20

Finding the Fourth Proportional to 257,438,793.60, 386,140,475.70 and 82,559,275.20

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Solution

The fourth proportional to 257,438,793.60, 386,140,475.70 and 82,559,275.20 is: 123,833,231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,438,793.60 : 386,140,475.70 = 82,559,275.20 : x
  2. Step 2: Convert to fraction form
    257,438,793.60/386,140,475.70 = 82,559,275.20/x
  3. Step 3: Cross multiply
    257,438,793.60x = 386,140,475.70 × 82,559,275.20
  4. Step 4: Simplify right side
    257,438,793.60x = 31,879,477,799,175,212
  5. Step 5: Solve for x
    x = 31,879,477,799,175,212/257,438,793.60
  6. Step 6: Final answer
    x = 123,833,231.79

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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.