Home / 257,548,974.40-386,323,461.60-85,052,411.20

Finding the Fourth Proportional to 257,548,974.40, 386,323,461.60 and 85,052,411.20

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Solution

The fourth proportional to 257,548,974.40, 386,323,461.60 and 85,052,411.20 is: 127,578,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,548,974.40 : 386,323,461.60 = 85,052,411.20 : x
  2. Step 2: Convert to fraction form
    257,548,974.40/386,323,461.60 = 85,052,411.20/x
  3. Step 3: Cross multiply
    257,548,974.40x = 386,323,461.60 × 85,052,411.20
  4. Step 4: Simplify right side
    257,548,974.40x = 32,857,741,912,210,612
  5. Step 5: Solve for x
    x = 32,857,741,912,210,612/257,548,974.40
  6. Step 6: Final answer
    x = 127,578,616.80

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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.