Home / 664,305,931.20-996,458,896.80-492,119,047.20

Finding the Fourth Proportional to 664,305,931.20, 996,458,896.80 and 492,119,047.20

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Solution

The fourth proportional to 664,305,931.20, 996,458,896.80 and 492,119,047.20 is: 738,178,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,305,931.20 : 996,458,896.80 = 492,119,047.20 : x
  2. Step 2: Convert to fraction form
    664,305,931.20/996,458,896.80 = 492,119,047.20/x
  3. Step 3: Cross multiply
    664,305,931.20x = 996,458,896.80 × 492,119,047.20
  4. Step 4: Simplify right side
    664,305,931.20x = 490,376,402,867,179,072
  5. Step 5: Solve for x
    x = 490,376,402,867,179,072/664,305,931.20
  6. Step 6: Final answer
    x = 738,178,570.80

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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.