Home / 390,199,151.41-585,364,333.83-193,472,273.42

Finding the Fourth Proportional to 390,199,151.41, 585,364,333.83 and 193,472,273.42

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Solution

The fourth proportional to 390,199,151.41, 585,364,333.83 and 193,472,273.42 is: 290,240,939.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,199,151.41 : 585,364,333.83 = 193,472,273.42 : x
  2. Step 2: Convert to fraction form
    390,199,151.41/585,364,333.83 = 193,472,273.42/x
  3. Step 3: Cross multiply
    390,199,151.41x = 585,364,333.83 × 193,472,273.42
  4. Step 4: Simplify right side
    390,199,151.41x = 113,251,768,445,073,920
  5. Step 5: Solve for x
    x = 113,251,768,445,073,920/390,199,151.41
  6. Step 6: Final answer
    x = 290,240,939.88

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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.