Home / 8,938,721.40-13,408,082.10-8,300,992.20

Finding the Fourth Proportional to 8,938,721.40, 13,408,082.10 and 8,300,992.20

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Solution

The fourth proportional to 8,938,721.40, 13,408,082.10 and 8,300,992.20 is: 12,451,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938,721.40 : 13,408,082.10 = 8,300,992.20 : x
  2. Step 2: Convert to fraction form
    8,938,721.40/13,408,082.10 = 8,300,992.20/x
  3. Step 3: Cross multiply
    8,938,721.40x = 13,408,082.10 × 8,300,992.20
  4. Step 4: Simplify right side
    8,938,721.40x = 111,300,384,929,059.62
  5. Step 5: Solve for x
    x = 111,300,384,929,059.62/8,938,721.40
  6. Step 6: Final answer
    x = 12,451,488.30

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1.5x scale

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.