Home / 388,589,549.68-582,886,829.92-155,439,739.36

Finding the Fourth Proportional to 388,589,549.68, 582,886,829.92 and 155,439,739.36

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Solution

The fourth proportional to 388,589,549.68, 582,886,829.92 and 155,439,739.36 is: 233,160,611.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,589,549.68 : 582,886,829.92 = 155,439,739.36 : x
  2. Step 2: Convert to fraction form
    388,589,549.68/582,886,829.92 = 155,439,739.36/x
  3. Step 3: Cross multiply
    388,589,549.68x = 582,886,829.92 × 155,439,739.36
  4. Step 4: Simplify right side
    388,589,549.68x = 90,603,776,919,141,456
  5. Step 5: Solve for x
    x = 90,603,776,919,141,456/388,589,549.68
  6. Step 6: Final answer
    x = 233,160,611.23

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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.