Home / 20,219,085.60-30,328,628.40-17,827,601.10

Finding the Fourth Proportional to 20,219,085.60, 30,328,628.40 and 17,827,601.10

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Solution

The fourth proportional to 20,219,085.60, 30,328,628.40 and 17,827,601.10 is: 26,741,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,085.60 : 30,328,628.40 = 17,827,601.10 : x
  2. Step 2: Convert to fraction form
    20,219,085.60/30,328,628.40 = 17,827,601.10/x
  3. Step 3: Cross multiply
    20,219,085.60x = 30,328,628.40 × 17,827,601.10
  4. Step 4: Simplify right side
    20,219,085.60x = 540,686,689,025,331.25
  5. Step 5: Solve for x
    x = 540,686,689,025,331.25/20,219,085.60
  6. Step 6: Final answer
    x = 26,741,401.65

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1.5x scale

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.