Home / 20,408,235.32-28,164,010.20-11,116,085.12

Finding the Fourth Proportional to 20,408,235.32, 28,164,010.20 and 11,116,085.12

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Solution

The fourth proportional to 20,408,235.32, 28,164,010.20 and 11,116,085.12 is: 15,340,549.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,235.32 : 28,164,010.20 = 11,116,085.12 : x
  2. Step 2: Convert to fraction form
    20,408,235.32/28,164,010.20 = 11,116,085.12/x
  3. Step 3: Cross multiply
    20,408,235.32x = 28,164,010.20 × 11,116,085.12
  4. Step 4: Simplify right side
    20,408,235.32x = 313,073,534,703,748.19
  5. Step 5: Solve for x
    x = 313,073,534,703,748.19/20,408,235.32
  6. Step 6: Final answer
    x = 15,340,549.04

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1.5x scale

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.