Home / 20,967,878.75-28,935,396.62-11,548,488.74

Finding the Fourth Proportional to 20,967,878.75, 28,935,396.62 and 11,548,488.74

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Solution

The fourth proportional to 20,967,878.75, 28,935,396.62 and 11,548,488.74 is: 15,936,762.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,967,878.75 : 28,935,396.62 = 11,548,488.74 : x
  2. Step 2: Convert to fraction form
    20,967,878.75/28,935,396.62 = 11,548,488.74/x
  3. Step 3: Cross multiply
    20,967,878.75x = 28,935,396.62 × 11,548,488.74
  4. Step 4: Simplify right side
    20,967,878.75x = 334,160,101,894,391.44
  5. Step 5: Solve for x
    x = 334,160,101,894,391.44/20,967,878.75
  6. Step 6: Final answer
    x = 15,936,762.41

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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.