Home / 746,687,998.70-1,120,031,998.05-488,698,981.10

Finding the Fourth Proportional to 746,687,998.70, 1,120,031,998.05 and 488,698,981.10

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Solution

The fourth proportional to 746,687,998.70, 1,120,031,998.05 and 488,698,981.10 is: 733,048,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,687,998.70 : 1,120,031,998.05 = 488,698,981.10 : x
  2. Step 2: Convert to fraction form
    746,687,998.70/1,120,031,998.05 = 488,698,981.10/x
  3. Step 3: Cross multiply
    746,687,998.70x = 1,120,031,998.05 × 488,698,981.10
  4. Step 4: Simplify right side
    746,687,998.70x = 547,358,496,246,432,192
  5. Step 5: Solve for x
    x = 547,358,496,246,432,192/746,687,998.70
  6. Step 6: Final answer
    x = 733,048,471.65

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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.