Home / 52,560,878.40-78,803,992.80-20,200,276.80

Finding the Fourth Proportional to 52,560,878.40, 78,803,992.80 and 20,200,276.80

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Solution

The fourth proportional to 52,560,878.40, 78,803,992.80 and 20,200,276.80 is: 30,286,070.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,560,878.40 : 78,803,992.80 = 20,200,276.80 : x
  2. Step 2: Convert to fraction form
    52,560,878.40/78,803,992.80 = 20,200,276.80/x
  3. Step 3: Cross multiply
    52,560,878.40x = 78,803,992.80 × 20,200,276.80
  4. Step 4: Simplify right side
    52,560,878.40x = 1,591,862,467,505,207
  5. Step 5: Solve for x
    x = 1,591,862,467,505,207/52,560,878.40
  6. Step 6: Final answer
    x = 30,286,070.48

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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.