Home / 485,005,211.20-727,507,816.80-239,479,469.20

Finding the Fourth Proportional to 485,005,211.20, 727,507,816.80 and 239,479,469.20

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Solution

The fourth proportional to 485,005,211.20, 727,507,816.80 and 239,479,469.20 is: 359,219,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,005,211.20 : 727,507,816.80 = 239,479,469.20 : x
  2. Step 2: Convert to fraction form
    485,005,211.20/727,507,816.80 = 239,479,469.20/x
  3. Step 3: Cross multiply
    485,005,211.20x = 727,507,816.80 × 239,479,469.20
  4. Step 4: Simplify right side
    485,005,211.20x = 174,223,185,806,114,816
  5. Step 5: Solve for x
    x = 174,223,185,806,114,816/485,005,211.20
  6. Step 6: Final answer
    x = 359,219,203.80

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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.