Home / 20,408,237.32-28,164,012.96-11,116,087.12

Finding the Fourth Proportional to 20,408,237.32, 28,164,012.96 and 11,116,087.12

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Solution

The fourth proportional to 20,408,237.32, 28,164,012.96 and 11,116,087.12 is: 15,340,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,237.32 : 28,164,012.96 = 11,116,087.12 : x
  2. Step 2: Convert to fraction form
    20,408,237.32/28,164,012.96 = 11,116,087.12/x
  3. Step 3: Cross multiply
    20,408,237.32x = 28,164,012.96 × 11,116,087.12
  4. Step 4: Simplify right side
    20,408,237.32x = 313,073,621,712,169.06
  5. Step 5: Solve for x
    x = 313,073,621,712,169.06/20,408,237.32
  6. Step 6: Final answer
    x = 15,340,551.80

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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.