Home / 487,154,563.20-730,731,844.80-123,648,919.20

Finding the Fourth Proportional to 487,154,563.20, 730,731,844.80 and 123,648,919.20

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Solution

The fourth proportional to 487,154,563.20, 730,731,844.80 and 123,648,919.20 is: 185,473,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,154,563.20 : 730,731,844.80 = 123,648,919.20 : x
  2. Step 2: Convert to fraction form
    487,154,563.20/730,731,844.80 = 123,648,919.20/x
  3. Step 3: Cross multiply
    487,154,563.20x = 730,731,844.80 × 123,648,919.20
  4. Step 4: Simplify right side
    487,154,563.20x = 90,354,202,834,542,144
  5. Step 5: Solve for x
    x = 90,354,202,834,542,144/487,154,563.20
  6. Step 6: Final answer
    x = 185,473,378.80

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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.