Home / 257,984,609.28-386,974,512-104,594,205.12

Finding the Fourth Proportional to 257,984,609.28, 386,974,512 and 104,594,205.12

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Solution

The fourth proportional to 257,984,609.28, 386,974,512 and 104,594,205.12 is: 156,890,333.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,984,609.28 : 386,974,512 = 104,594,205.12 : x
  2. Step 2: Convert to fraction form
    257,984,609.28/386,974,512 = 104,594,205.12/x
  3. Step 3: Cross multiply
    257,984,609.28x = 386,974,512 × 104,594,205.12
  4. Step 4: Simplify right side
    257,984,609.28x = 40,475,291,484,339,904
  5. Step 5: Solve for x
    x = 40,475,291,484,339,904/257,984,609.28
  6. Step 6: Final answer
    x = 156,890,333.87

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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.