Home / 257,693,915.79-386,490,986.33-100,126,659.96

Finding the Fourth Proportional to 257,693,915.79, 386,490,986.33 and 100,126,659.96

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Solution

The fourth proportional to 257,693,915.79, 386,490,986.33 and 100,126,659.96 is: 150,170,606.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,693,915.79 : 386,490,986.33 = 100,126,659.96 : x
  2. Step 2: Convert to fraction form
    257,693,915.79/386,490,986.33 = 100,126,659.96/x
  3. Step 3: Cross multiply
    257,693,915.79x = 386,490,986.33 × 100,126,659.96
  4. Step 4: Simplify right side
    257,693,915.79x = 38,698,051,565,368,280
  5. Step 5: Solve for x
    x = 38,698,051,565,368,280/257,693,915.79
  6. Step 6: Final answer
    x = 150,170,606.27

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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.