Home / 13,408,215.40-20,122,820.70-6,220,639.90

Finding the Fourth Proportional to 13,408,215.40, 20,122,820.70 and 6,220,639.90

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Solution

The fourth proportional to 13,408,215.40, 20,122,820.70 and 6,220,639.90 is: 9,335,830.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408,215.40 : 20,122,820.70 = 6,220,639.90 : x
  2. Step 2: Convert to fraction form
    13,408,215.40/20,122,820.70 = 6,220,639.90/x
  3. Step 3: Cross multiply
    13,408,215.40x = 20,122,820.70 × 6,220,639.90
  4. Step 4: Simplify right side
    13,408,215.40x = 125,176,821,346,965.94
  5. Step 5: Solve for x
    x = 125,176,821,346,965.94/13,408,215.40
  6. Step 6: Final answer
    x = 9,335,830.13

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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.