Home / 20,776,920.30-31,165,380.45-15,738,072.30

Finding the Fourth Proportional to 20,776,920.30, 31,165,380.45 and 15,738,072.30

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Solution

The fourth proportional to 20,776,920.30, 31,165,380.45 and 15,738,072.30 is: 23,607,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,920.30 : 31,165,380.45 = 15,738,072.30 : x
  2. Step 2: Convert to fraction form
    20,776,920.30/31,165,380.45 = 15,738,072.30/x
  3. Step 3: Cross multiply
    20,776,920.30x = 31,165,380.45 × 15,738,072.30
  4. Step 4: Simplify right side
    20,776,920.30x = 490,483,010,779,106.56
  5. Step 5: Solve for x
    x = 490,483,010,779,106.56/20,776,920.30
  6. Step 6: Final answer
    x = 23,607,108.45

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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.