Home / 431,232,331.30-646,848,496.95-327,920,200.90

Finding the Fourth Proportional to 431,232,331.30, 646,848,496.95 and 327,920,200.90

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Solution

The fourth proportional to 431,232,331.30, 646,848,496.95 and 327,920,200.90 is: 491,880,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,232,331.30 : 646,848,496.95 = 327,920,200.90 : x
  2. Step 2: Convert to fraction form
    431,232,331.30/646,848,496.95 = 327,920,200.90/x
  3. Step 3: Cross multiply
    431,232,331.30x = 646,848,496.95 × 327,920,200.90
  4. Step 4: Simplify right side
    431,232,331.30x = 212,114,689,071,707,040
  5. Step 5: Solve for x
    x = 212,114,689,071,707,040/431,232,331.30
  6. Step 6: Final answer
    x = 491,880,301.35

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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.