Home / 21,050,126.20-31,575,189.30-18,446,721.40

Finding the Fourth Proportional to 21,050,126.20, 31,575,189.30 and 18,446,721.40

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Solution

The fourth proportional to 21,050,126.20, 31,575,189.30 and 18,446,721.40 is: 27,670,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050,126.20 : 31,575,189.30 = 18,446,721.40 : x
  2. Step 2: Convert to fraction form
    21,050,126.20/31,575,189.30 = 18,446,721.40/x
  3. Step 3: Cross multiply
    21,050,126.20x = 31,575,189.30 × 18,446,721.40
  4. Step 4: Simplify right side
    21,050,126.20x = 582,458,720,169,361
  5. Step 5: Solve for x
    x = 582,458,720,169,361/21,050,126.20
  6. Step 6: Final answer
    x = 27,670,082.10

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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.