Home / 21,263,279.20-31,899,584.40-6,887,010.40

Finding the Fourth Proportional to 21,263,279.20, 31,899,584.40 and 6,887,010.40

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Solution

The fourth proportional to 21,263,279.20, 31,899,584.40 and 6,887,010.40 is: 10,332,026.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263,279.20 : 31,899,584.40 = 6,887,010.40 : x
  2. Step 2: Convert to fraction form
    21,263,279.20/31,899,584.40 = 6,887,010.40/x
  3. Step 3: Cross multiply
    21,263,279.20x = 31,899,584.40 × 6,887,010.40
  4. Step 4: Simplify right side
    21,263,279.20x = 219,692,769,518,477.75
  5. Step 5: Solve for x
    x = 219,692,769,518,477.75/21,263,279.20
  6. Step 6: Final answer
    x = 10,332,026.75

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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.