Home / 639,083,247.90-958,624,871.85-329,146,856.70

Finding the Fourth Proportional to 639,083,247.90, 958,624,871.85 and 329,146,856.70

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Solution

The fourth proportional to 639,083,247.90, 958,624,871.85 and 329,146,856.70 is: 493,720,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,083,247.90 : 958,624,871.85 = 329,146,856.70 : x
  2. Step 2: Convert to fraction form
    639,083,247.90/958,624,871.85 = 329,146,856.70/x
  3. Step 3: Cross multiply
    639,083,247.90x = 958,624,871.85 × 329,146,856.70
  4. Step 4: Simplify right side
    639,083,247.90x = 315,528,363,323,867,840
  5. Step 5: Solve for x
    x = 315,528,363,323,867,840/639,083,247.90
  6. Step 6: Final answer
    x = 493,720,285.05

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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.