Home / 52,422,978.80-78,634,468.20-47,321,145.20

Finding the Fourth Proportional to 52,422,978.80, 78,634,468.20 and 47,321,145.20

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Solution

The fourth proportional to 52,422,978.80, 78,634,468.20 and 47,321,145.20 is: 70,981,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,422,978.80 : 78,634,468.20 = 47,321,145.20 : x
  2. Step 2: Convert to fraction form
    52,422,978.80/78,634,468.20 = 47,321,145.20/x
  3. Step 3: Cross multiply
    52,422,978.80x = 78,634,468.20 × 47,321,145.20
  4. Step 4: Simplify right side
    52,422,978.80x = 3,721,073,087,416,983
  5. Step 5: Solve for x
    x = 3,721,073,087,416,983/52,422,978.80
  6. Step 6: Final answer
    x = 70,981,717.80

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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.