Home / 709,763,816.92-979,511,672.28-427,595,083.24

Finding the Fourth Proportional to 709,763,816.92, 979,511,672.28 and 427,595,083.24

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Solution

The fourth proportional to 709,763,816.92, 979,511,672.28 and 427,595,083.24 is: 590,103,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,763,816.92 : 979,511,672.28 = 427,595,083.24 : x
  2. Step 2: Convert to fraction form
    709,763,816.92/979,511,672.28 = 427,595,083.24/x
  3. Step 3: Cross multiply
    709,763,816.92x = 979,511,672.28 × 427,595,083.24
  4. Step 4: Simplify right side
    709,763,816.92x = 418,834,375,043,118,208
  5. Step 5: Solve for x
    x = 418,834,375,043,118,208/709,763,816.92
  6. Step 6: Final answer
    x = 590,103,869.85

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Why These Related Problems?

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