Home / 68,346,092.80-102,519,139.20-20,477,036.80

Finding the Fourth Proportional to 68,346,092.80, 102,519,139.20 and 20,477,036.80

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Solution

The fourth proportional to 68,346,092.80, 102,519,139.20 and 20,477,036.80 is: 30,715,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,346,092.80 : 102,519,139.20 = 20,477,036.80 : x
  2. Step 2: Convert to fraction form
    68,346,092.80/102,519,139.20 = 20,477,036.80/x
  3. Step 3: Cross multiply
    68,346,092.80x = 102,519,139.20 × 20,477,036.80
  4. Step 4: Simplify right side
    68,346,092.80x = 2,099,288,186,102,722.75
  5. Step 5: Solve for x
    x = 2,099,288,186,102,722.75/68,346,092.80
  6. Step 6: Final answer
    x = 30,715,555.20

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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.