Home / 391,186,116.80-586,350,631.20-196,787,499.20

Finding the Fourth Proportional to 391,186,116.80, 586,350,631.20 and 196,787,499.20

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Solution

The fourth proportional to 391,186,116.80, 586,350,631.20 and 196,787,499.20 is: 294,965,668.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,186,116.80 : 586,350,631.20 = 196,787,499.20 : x
  2. Step 2: Convert to fraction form
    391,186,116.80/586,350,631.20 = 196,787,499.20/x
  3. Step 3: Cross multiply
    391,186,116.80x = 586,350,631.20 × 196,787,499.20
  4. Step 4: Simplify right side
    391,186,116.80x = 115,386,474,368,189,504
  5. Step 5: Solve for x
    x = 115,386,474,368,189,504/391,186,116.80
  6. Step 6: Final answer
    x = 294,965,668.29

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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.