Home / 388,408,189.37-582,980,619.20-240,408,061.78

Finding the Fourth Proportional to 388,408,189.37, 582,980,619.20 and 240,408,061.78

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Solution

The fourth proportional to 388,408,189.37, 582,980,619.20 and 240,408,061.78 is: 360,840,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,408,189.37 : 582,980,619.20 = 240,408,061.78 : x
  2. Step 2: Convert to fraction form
    388,408,189.37/582,980,619.20 = 240,408,061.78/x
  3. Step 3: Cross multiply
    388,408,189.37x = 582,980,619.20 × 240,408,061.78
  4. Step 4: Simplify right side
    388,408,189.37x = 140,153,240,715,606,960
  5. Step 5: Solve for x
    x = 140,153,240,715,606,960/388,408,189.37
  6. Step 6: Final answer
    x = 360,840,076.37

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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.