Home / 221,689,855.83-332,432,427.71-81,595,123.28

Finding the Fourth Proportional to 221,689,855.83, 332,432,427.71 and 81,595,123.28

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Solution

The fourth proportional to 221,689,855.83, 332,432,427.71 and 81,595,123.28 is: 122,355,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,689,855.83 : 332,432,427.71 = 81,595,123.28 : x
  2. Step 2: Convert to fraction form
    221,689,855.83/332,432,427.71 = 81,595,123.28/x
  3. Step 3: Cross multiply
    221,689,855.83x = 332,432,427.71 × 81,595,123.28
  4. Step 4: Simplify right side
    221,689,855.83x = 27,124,864,921,690,240
  5. Step 5: Solve for x
    x = 27,124,864,921,690,240/221,689,855.83
  6. Step 6: Final answer
    x = 122,355,011.78

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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.