Home / 431,215,166.40-646,850,743.20-227,141,822.40

Finding the Fourth Proportional to 431,215,166.40, 646,850,743.20 and 227,141,822.40

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Solution

The fourth proportional to 431,215,166.40, 646,850,743.20 and 227,141,822.40 is: 340,727,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,215,166.40 : 646,850,743.20 = 227,141,822.40 : x
  2. Step 2: Convert to fraction form
    431,215,166.40/646,850,743.20 = 227,141,822.40/x
  3. Step 3: Cross multiply
    431,215,166.40x = 646,850,743.20 × 227,141,822.40
  4. Step 4: Simplify right side
    431,215,166.40x = 146,926,856,631,242,432
  5. Step 5: Solve for x
    x = 146,926,856,631,242,432/431,215,166.40
  6. Step 6: Final answer
    x = 340,727,479.18

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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.