Home / 872,942,841.76-1,309,992,587.66-479,744,260.42

Finding the Fourth Proportional to 872,942,841.76, 1,309,992,587.66 and 479,744,260.42

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Solution

The fourth proportional to 872,942,841.76, 1,309,992,587.66 and 479,744,260.42 is: 719,934,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,942,841.76 : 1,309,992,587.66 = 479,744,260.42 : x
  2. Step 2: Convert to fraction form
    872,942,841.76/1,309,992,587.66 = 479,744,260.42/x
  3. Step 3: Cross multiply
    872,942,841.76x = 1,309,992,587.66 × 479,744,260.42
  4. Step 4: Simplify right side
    872,942,841.76x = 628,461,425,122,628,736
  5. Step 5: Solve for x
    x = 628,461,425,122,628,736/872,942,841.76
  6. Step 6: Final answer
    x = 719,934,221.42

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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.