Home / 82,446,397.20-123,669,595.80-80,556,829.20

Finding the Fourth Proportional to 82,446,397.20, 123,669,595.80 and 80,556,829.20

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Solution

The fourth proportional to 82,446,397.20, 123,669,595.80 and 80,556,829.20 is: 120,835,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,446,397.20 : 123,669,595.80 = 80,556,829.20 : x
  2. Step 2: Convert to fraction form
    82,446,397.20/123,669,595.80 = 80,556,829.20/x
  3. Step 3: Cross multiply
    82,446,397.20x = 123,669,595.80 × 80,556,829.20
  4. Step 4: Simplify right side
    82,446,397.20x = 9,962,430,506,093,638
  5. Step 5: Solve for x
    x = 9,962,430,506,093,638/82,446,397.20
  6. Step 6: Final answer
    x = 120,835,243.80

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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.