Home / 431,328,672.60-646,993,008.90-268,069,997.40

Finding the Fourth Proportional to 431,328,672.60, 646,993,008.90 and 268,069,997.40

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Solution

The fourth proportional to 431,328,672.60, 646,993,008.90 and 268,069,997.40 is: 402,104,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,328,672.60 : 646,993,008.90 = 268,069,997.40 : x
  2. Step 2: Convert to fraction form
    431,328,672.60/646,993,008.90 = 268,069,997.40/x
  3. Step 3: Cross multiply
    431,328,672.60x = 646,993,008.90 × 268,069,997.40
  4. Step 4: Simplify right side
    431,328,672.60x = 173,439,414,213,641,184
  5. Step 5: Solve for x
    x = 173,439,414,213,641,184/431,328,672.60
  6. Step 6: Final answer
    x = 402,104,996.10

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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.