Home / 315,023,049.20-472,392,856.20-120,869,937.20

Finding the Fourth Proportional to 315,023,049.20, 472,392,856.20 and 120,869,937.20

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Solution

The fourth proportional to 315,023,049.20, 472,392,856.20 and 120,869,937.20 is: 181,250,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,023,049.20 : 472,392,856.20 = 120,869,937.20 : x
  2. Step 2: Convert to fraction form
    315,023,049.20/472,392,856.20 = 120,869,937.20/x
  3. Step 3: Cross multiply
    315,023,049.20x = 472,392,856.20 × 120,869,937.20
  4. Step 4: Simplify right side
    315,023,049.20x = 57,098,094,862,622,632
  5. Step 5: Solve for x
    x = 57,098,094,862,622,632/315,023,049.20
  6. Step 6: Final answer
    x = 181,250,530.74

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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.