Home / 459,259,212.85-688,888,819.28-440,127,336.85

Finding the Fourth Proportional to 459,259,212.85, 688,888,819.28 and 440,127,336.85

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Solution

The fourth proportional to 459,259,212.85, 688,888,819.28 and 440,127,336.85 is: 660,191,005.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,259,212.85 : 688,888,819.28 = 440,127,336.85 : x
  2. Step 2: Convert to fraction form
    459,259,212.85/688,888,819.28 = 440,127,336.85/x
  3. Step 3: Cross multiply
    459,259,212.85x = 688,888,819.28 × 440,127,336.85
  4. Step 4: Simplify right side
    459,259,212.85x = 303,198,801,413,246,720
  5. Step 5: Solve for x
    x = 303,198,801,413,246,720/459,259,212.85
  6. Step 6: Final answer
    x = 660,191,005.28

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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.