Home / 442,868,005.60-664,302,008.40-419,192,309.06

Finding the Fourth Proportional to 442,868,005.60, 664,302,008.40 and 419,192,309.06

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Solution

The fourth proportional to 442,868,005.60, 664,302,008.40 and 419,192,309.06 is: 628,788,463.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,005.60 : 664,302,008.40 = 419,192,309.06 : x
  2. Step 2: Convert to fraction form
    442,868,005.60/664,302,008.40 = 419,192,309.06/x
  3. Step 3: Cross multiply
    442,868,005.60x = 664,302,008.40 × 419,192,309.06
  4. Step 4: Simplify right side
    442,868,005.60x = 278,470,292,814,391,520
  5. Step 5: Solve for x
    x = 278,470,292,814,391,520/442,868,005.60
  6. Step 6: Final answer
    x = 628,788,463.59

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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.