Home / 472,392,690.30-708,589,035.45-127,381,193.10

Finding the Fourth Proportional to 472,392,690.30, 708,589,035.45 and 127,381,193.10

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Solution

The fourth proportional to 472,392,690.30, 708,589,035.45 and 127,381,193.10 is: 191,071,789.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,690.30 : 708,589,035.45 = 127,381,193.10 : x
  2. Step 2: Convert to fraction form
    472,392,690.30/708,589,035.45 = 127,381,193.10/x
  3. Step 3: Cross multiply
    472,392,690.30x = 708,589,035.45 × 127,381,193.10
  4. Step 4: Simplify right side
    472,392,690.30x = 90,260,916,753,199,200
  5. Step 5: Solve for x
    x = 90,260,916,753,199,200/472,392,690.30
  6. Step 6: Final answer
    x = 191,071,789.65

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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.