Home / 257,550,205.40-386,325,308.10-85,053,642.20

Finding the Fourth Proportional to 257,550,205.40, 386,325,308.10 and 85,053,642.20

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Solution

The fourth proportional to 257,550,205.40, 386,325,308.10 and 85,053,642.20 is: 127,580,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,550,205.40 : 386,325,308.10 = 85,053,642.20 : x
  2. Step 2: Convert to fraction form
    257,550,205.40/386,325,308.10 = 85,053,642.20/x
  3. Step 3: Cross multiply
    257,550,205.40x = 386,325,308.10 × 85,053,642.20
  4. Step 4: Simplify right side
    257,550,205.40x = 32,858,374,527,942,164
  5. Step 5: Solve for x
    x = 32,858,374,527,942,164/257,550,205.40
  6. Step 6: Final answer
    x = 127,580,463.30

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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.