Home / 1,215,230,842.20-1,822,896,029.70-353,587,834.20

Finding the Fourth Proportional to 1,215,230,842.20, 1,822,896,029.70 and 353,587,834.20

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Solution

The fourth proportional to 1,215,230,842.20, 1,822,896,029.70 and 353,587,834.20 is: 530,396,231.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,230,842.20 : 1,822,896,029.70 = 353,587,834.20 : x
  2. Step 2: Convert to fraction form
    1,215,230,842.20/1,822,896,029.70 = 353,587,834.20/x
  3. Step 3: Cross multiply
    1,215,230,842.20x = 1,822,896,029.70 × 353,587,834.20
  4. Step 4: Simplify right side
    1,215,230,842.20x = 644,553,859,113,401,856
  5. Step 5: Solve for x
    x = 644,553,859,113,401,856/1,215,230,842.20
  6. Step 6: Final answer
    x = 530,396,231.51

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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.