Home / 28,974,452.28-39,985,062.40-15,921,714.56

Finding the Fourth Proportional to 28,974,452.28, 39,985,062.40 and 15,921,714.56

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Solution

The fourth proportional to 28,974,452.28, 39,985,062.40 and 15,921,714.56 is: 21,972,140.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974,452.28 : 39,985,062.40 = 15,921,714.56 : x
  2. Step 2: Convert to fraction form
    28,974,452.28/39,985,062.40 = 15,921,714.56/x
  3. Step 3: Cross multiply
    28,974,452.28x = 39,985,062.40 × 15,921,714.56
  4. Step 4: Simplify right side
    28,974,452.28x = 636,630,750,196,588.50
  5. Step 5: Solve for x
    x = 636,630,750,196,588.50/28,974,452.28
  6. Step 6: Final answer
    x = 21,972,140.98

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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.