Home / 638,831,182.20-958,246,773.30-409,248,670.20

Finding the Fourth Proportional to 638,831,182.20, 958,246,773.30 and 409,248,670.20

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Solution

The fourth proportional to 638,831,182.20, 958,246,773.30 and 409,248,670.20 is: 613,873,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,831,182.20 : 958,246,773.30 = 409,248,670.20 : x
  2. Step 2: Convert to fraction form
    638,831,182.20/958,246,773.30 = 409,248,670.20/x
  3. Step 3: Cross multiply
    638,831,182.20x = 958,246,773.30 × 409,248,670.20
  4. Step 4: Simplify right side
    638,831,182.20x = 392,161,217,696,465,856
  5. Step 5: Solve for x
    x = 392,161,217,696,465,856/638,831,182.20
  6. Step 6: Final answer
    x = 613,873,005.30

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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.