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Finding the Fourth Proportional to 387,027,672.90, 579,745,246.95 and 195,659,276.10

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Solution

The fourth proportional to 387,027,672.90, 579,745,246.95 and 195,659,276.10 is: 293,086,368.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,027,672.90 : 579,745,246.95 = 195,659,276.10 : x
  2. Step 2: Convert to fraction form
    387,027,672.90/579,745,246.95 = 195,659,276.10/x
  3. Step 3: Cross multiply
    387,027,672.90x = 579,745,246.95 × 195,659,276.10
  4. Step 4: Simplify right side
    387,027,672.90x = 113,432,535,340,652,736
  5. Step 5: Solve for x
    x = 113,432,535,340,652,736/387,027,672.90
  6. Step 6: Final answer
    x = 293,086,368.97

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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.