Home / 664,177,514.40-996,691,424.40-387,828,194.40

Finding the Fourth Proportional to 664,177,514.40, 996,691,424.40 and 387,828,194.40

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Solution

The fourth proportional to 664,177,514.40, 996,691,424.40 and 387,828,194.40 is: 581,990,547.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,177,514.40 : 996,691,424.40 = 387,828,194.40 : x
  2. Step 2: Convert to fraction form
    664,177,514.40/996,691,424.40 = 387,828,194.40/x
  3. Step 3: Cross multiply
    664,177,514.40x = 996,691,424.40 × 387,828,194.40
  4. Step 4: Simplify right side
    664,177,514.40x = 386,545,035,499,016,064
  5. Step 5: Solve for x
    x = 386,545,035,499,016,064/664,177,514.40
  6. Step 6: Final answer
    x = 581,990,547.89

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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.