Home / 689,768,127.60-951,737,920.44-396,356,008.56

Finding the Fourth Proportional to 689,768,127.60, 951,737,920.44 and 396,356,008.56

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Solution

The fourth proportional to 689,768,127.60, 951,737,920.44 and 396,356,008.56 is: 546,889,640.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,768,127.60 : 951,737,920.44 = 396,356,008.56 : x
  2. Step 2: Convert to fraction form
    689,768,127.60/951,737,920.44 = 396,356,008.56/x
  3. Step 3: Cross multiply
    689,768,127.60x = 951,737,920.44 × 396,356,008.56
  4. Step 4: Simplify right side
    689,768,127.60x = 377,227,043,340,793,280
  5. Step 5: Solve for x
    x = 377,227,043,340,793,280/689,768,127.60
  6. Step 6: Final answer
    x = 546,889,640.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.