Home / 381,609,110.70-572,413,666.05-260,676,758.70

Finding the Fourth Proportional to 381,609,110.70, 572,413,666.05 and 260,676,758.70

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Solution

The fourth proportional to 381,609,110.70, 572,413,666.05 and 260,676,758.70 is: 391,015,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,609,110.70 : 572,413,666.05 = 260,676,758.70 : x
  2. Step 2: Convert to fraction form
    381,609,110.70/572,413,666.05 = 260,676,758.70/x
  3. Step 3: Cross multiply
    381,609,110.70x = 572,413,666.05 × 260,676,758.70
  4. Step 4: Simplify right side
    381,609,110.70x = 149,214,939,101,498,208
  5. Step 5: Solve for x
    x = 149,214,939,101,498,208/381,609,110.70
  6. Step 6: Final answer
    x = 391,015,138.05

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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.