Home / 472,392,912.30-708,589,368.45-239,940,618.90

Finding the Fourth Proportional to 472,392,912.30, 708,589,368.45 and 239,940,618.90

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Solution

The fourth proportional to 472,392,912.30, 708,589,368.45 and 239,940,618.90 is: 359,910,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,912.30 : 708,589,368.45 = 239,940,618.90 : x
  2. Step 2: Convert to fraction form
    472,392,912.30/708,589,368.45 = 239,940,618.90/x
  3. Step 3: Cross multiply
    472,392,912.30x = 708,589,368.45 × 239,940,618.90
  4. Step 4: Simplify right side
    472,392,912.30x = 170,019,371,611,853,152
  5. Step 5: Solve for x
    x = 170,019,371,611,853,152/472,392,912.30
  6. Step 6: Final answer
    x = 359,910,928.35

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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.