Home / 140,217,363-193,496,396.13-78,338,166.30

Finding the Fourth Proportional to 140,217,363, 193,496,396.13 and 78,338,166.30

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Solution

The fourth proportional to 140,217,363, 193,496,396.13 and 78,338,166.30 is: 108,104,677.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,217,363 : 193,496,396.13 = 78,338,166.30 : x
  2. Step 2: Convert to fraction form
    140,217,363/193,496,396.13 = 78,338,166.30/x
  3. Step 3: Cross multiply
    140,217,363x = 193,496,396.13 × 78,338,166.30
  4. Step 4: Simplify right side
    140,217,363x = 15,158,152,858,482,616
  5. Step 5: Solve for x
    x = 15,158,152,858,482,616/140,217,363
  6. Step 6: Final answer
    x = 108,104,677.87

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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.