Home / 1,420,107,212.70-2,130,160,819.05-800,234,430.30

Finding the Fourth Proportional to 1,420,107,212.70, 2,130,160,819.05 and 800,234,430.30

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Solution

The fourth proportional to 1,420,107,212.70, 2,130,160,819.05 and 800,234,430.30 is: 1,200,351,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,107,212.70 : 2,130,160,819.05 = 800,234,430.30 : x
  2. Step 2: Convert to fraction form
    1,420,107,212.70/2,130,160,819.05 = 800,234,430.30/x
  3. Step 3: Cross multiply
    1,420,107,212.70x = 2,130,160,819.05 × 800,234,430.30
  4. Step 4: Simplify right side
    1,420,107,212.70x = 1,704,628,029,479,857,920
  5. Step 5: Solve for x
    x = 1,704,628,029,479,857,920/1,420,107,212.70
  6. Step 6: Final answer
    x = 1,200,351,645.45

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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.