Home / 388,078,905.80-582,118,358.70-194,020,272.20

Finding the Fourth Proportional to 388,078,905.80, 582,118,358.70 and 194,020,272.20

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Solution

The fourth proportional to 388,078,905.80, 582,118,358.70 and 194,020,272.20 is: 291,030,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,078,905.80 : 582,118,358.70 = 194,020,272.20 : x
  2. Step 2: Convert to fraction form
    388,078,905.80/582,118,358.70 = 194,020,272.20/x
  3. Step 3: Cross multiply
    388,078,905.80x = 582,118,358.70 × 194,020,272.20
  4. Step 4: Simplify right side
    388,078,905.80x = 112,942,762,407,591,248
  5. Step 5: Solve for x
    x = 112,942,762,407,591,248/388,078,905.80
  6. Step 6: Final answer
    x = 291,030,408.30

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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.