Home / 257,693,916.54-386,490,987.45-100,126,660.71

Finding the Fourth Proportional to 257,693,916.54, 386,490,987.45 and 100,126,660.71

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Solution

The fourth proportional to 257,693,916.54, 386,490,987.45 and 100,126,660.71 is: 150,170,607.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,693,916.54 : 386,490,987.45 = 100,126,660.71 : x
  2. Step 2: Convert to fraction form
    257,693,916.54/386,490,987.45 = 100,126,660.71/x
  3. Step 3: Cross multiply
    257,693,916.54x = 386,490,987.45 × 100,126,660.71
  4. Step 4: Simplify right side
    257,693,916.54x = 38,698,051,967,879,016
  5. Step 5: Solve for x
    x = 38,698,051,967,879,016/257,693,916.54
  6. Step 6: Final answer
    x = 150,170,607.39

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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.