Home / 14,189,340.20-21,284,010.30-13,405,519.40

Finding the Fourth Proportional to 14,189,340.20, 21,284,010.30 and 13,405,519.40

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Solution

The fourth proportional to 14,189,340.20, 21,284,010.30 and 13,405,519.40 is: 20,108,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189,340.20 : 21,284,010.30 = 13,405,519.40 : x
  2. Step 2: Convert to fraction form
    14,189,340.20/21,284,010.30 = 13,405,519.40/x
  3. Step 3: Cross multiply
    14,189,340.20x = 21,284,010.30 × 13,405,519.40
  4. Step 4: Simplify right side
    14,189,340.20x = 285,323,212,986,449.81
  5. Step 5: Solve for x
    x = 285,323,212,986,449.81/14,189,340.20
  6. Step 6: Final answer
    x = 20,108,279.10

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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.