Home / 20,440,061.49-28,202,435.28-11,618,820.44

Finding the Fourth Proportional to 20,440,061.49, 28,202,435.28 and 11,618,820.44

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Solution

The fourth proportional to 20,440,061.49, 28,202,435.28 and 11,618,820.44 is: 16,031,215.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440,061.49 : 28,202,435.28 = 11,618,820.44 : x
  2. Step 2: Convert to fraction form
    20,440,061.49/28,202,435.28 = 11,618,820.44/x
  3. Step 3: Cross multiply
    20,440,061.49x = 28,202,435.28 × 11,618,820.44
  4. Step 4: Simplify right side
    20,440,061.49x = 327,679,031,489,041.12
  5. Step 5: Solve for x
    x = 327,679,031,489,041.12/20,440,061.49
  6. Step 6: Final answer
    x = 16,031,215.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.