Home / 664,302,042.40-996,453,063.60-660,475,667.20

Finding the Fourth Proportional to 664,302,042.40, 996,453,063.60 and 660,475,667.20

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Solution

The fourth proportional to 664,302,042.40, 996,453,063.60 and 660,475,667.20 is: 990,713,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,042.40 : 996,453,063.60 = 660,475,667.20 : x
  2. Step 2: Convert to fraction form
    664,302,042.40/996,453,063.60 = 660,475,667.20/x
  3. Step 3: Cross multiply
    664,302,042.40x = 996,453,063.60 × 660,475,667.20
  4. Step 4: Simplify right side
    664,302,042.40x = 658,133,002,014,694,144
  5. Step 5: Solve for x
    x = 658,133,002,014,694,144/664,302,042.40
  6. Step 6: Final answer
    x = 990,713,500.80

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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.