Home / 257,475,961.40-386,661,839.70-136,543,609.40

Finding the Fourth Proportional to 257,475,961.40, 386,661,839.70 and 136,543,609.40

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Solution

The fourth proportional to 257,475,961.40, 386,661,839.70 and 136,543,609.40 is: 205,052,941.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,475,961.40 : 386,661,839.70 = 136,543,609.40 : x
  2. Step 2: Convert to fraction form
    257,475,961.40/386,661,839.70 = 136,543,609.40/x
  3. Step 3: Cross multiply
    257,475,961.40x = 386,661,839.70 × 136,543,609.40
  4. Step 4: Simplify right side
    257,475,961.40x = 52,796,203,209,882,216
  5. Step 5: Solve for x
    x = 52,796,203,209,882,216/257,475,961.40
  6. Step 6: Final answer
    x = 205,052,941.34

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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.