Home / 390,162,697.05-585,214,614.47-124,257,662.85

Finding the Fourth Proportional to 390,162,697.05, 585,214,614.47 and 124,257,662.85

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Solution

The fourth proportional to 390,162,697.05, 585,214,614.47 and 124,257,662.85 is: 186,377,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,162,697.05 : 585,214,614.47 = 124,257,662.85 : x
  2. Step 2: Convert to fraction form
    390,162,697.05/585,214,614.47 = 124,257,662.85/x
  3. Step 3: Cross multiply
    390,162,697.05x = 585,214,614.47 × 124,257,662.85
  4. Step 4: Simplify right side
    390,162,697.05x = 72,717,400,256,158,640
  5. Step 5: Solve for x
    x = 72,717,400,256,158,640/390,162,697.05
  6. Step 6: Final answer
    x = 186,377,121.15

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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.