Home / 20,363,570.20-28,101,007.74-11,196,141.40

Finding the Fourth Proportional to 20,363,570.20, 28,101,007.74 and 11,196,141.40

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Solution

The fourth proportional to 20,363,570.20, 28,101,007.74 and 11,196,141.40 is: 15,450,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363,570.20 : 28,101,007.74 = 11,196,141.40 : x
  2. Step 2: Convert to fraction form
    20,363,570.20/28,101,007.74 = 11,196,141.40/x
  3. Step 3: Cross multiply
    20,363,570.20x = 28,101,007.74 × 11,196,141.40
  4. Step 4: Simplify right side
    20,363,570.20x = 314,622,856,139,534.44
  5. Step 5: Solve for x
    x = 314,622,856,139,534.44/20,363,570.20
  6. Step 6: Final answer
    x = 15,450,279.74

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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.