Home / 20,298,454.56-28,012,251.60-11,130,550.56

Finding the Fourth Proportional to 20,298,454.56, 28,012,251.60 and 11,130,550.56

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Solution

The fourth proportional to 20,298,454.56, 28,012,251.60 and 11,130,550.56 is: 15,360,370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298,454.56 : 28,012,251.60 = 11,130,550.56 : x
  2. Step 2: Convert to fraction form
    20,298,454.56/28,012,251.60 = 11,130,550.56/x
  3. Step 3: Cross multiply
    20,298,454.56x = 28,012,251.60 × 11,130,550.56
  4. Step 4: Simplify right side
    20,298,454.56x = 311,791,782,733,240.94
  5. Step 5: Solve for x
    x = 311,791,782,733,240.94/20,298,454.56
  6. Step 6: Final answer
    x = 15,360,370.51

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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.