Home / 664,302,535.35-996,453,803.03-387,669,780.15

Finding the Fourth Proportional to 664,302,535.35, 996,453,803.03 and 387,669,780.15

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Solution

The fourth proportional to 664,302,535.35, 996,453,803.03 and 387,669,780.15 is: 581,504,670.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,535.35 : 996,453,803.03 = 387,669,780.15 : x
  2. Step 2: Convert to fraction form
    664,302,535.35/996,453,803.03 = 387,669,780.15/x
  3. Step 3: Cross multiply
    664,302,535.35x = 996,453,803.03 × 387,669,780.15
  4. Step 4: Simplify right side
    664,302,535.35x = 386,295,026,748,333,120
  5. Step 5: Solve for x
    x = 386,295,026,748,333,120/664,302,535.35
  6. Step 6: Final answer
    x = 581,504,670.23

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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.