Home / 257,701,674.25-386,613,036.60-85,178,469.29

Finding the Fourth Proportional to 257,701,674.25, 386,613,036.60 and 85,178,469.29

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Solution

The fourth proportional to 257,701,674.25, 386,613,036.60 and 85,178,469.29 is: 127,787,709.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,701,674.25 : 386,613,036.60 = 85,178,469.29 : x
  2. Step 2: Convert to fraction form
    257,701,674.25/386,613,036.60 = 85,178,469.29/x
  3. Step 3: Cross multiply
    257,701,674.25x = 386,613,036.60 × 85,178,469.29
  4. Step 4: Simplify right side
    257,701,674.25x = 32,931,106,665,146,752
  5. Step 5: Solve for x
    x = 32,931,106,665,146,752/257,701,674.25
  6. Step 6: Final answer
    x = 127,787,709.42

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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.