Home / 21,865,027.20-30,177,429.12-12,702,984

Finding the Fourth Proportional to 21,865,027.20, 30,177,429.12 and 12,702,984

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Solution

The fourth proportional to 21,865,027.20, 30,177,429.12 and 12,702,984 is: 17,532,262.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,865,027.20 : 30,177,429.12 = 12,702,984 : x
  2. Step 2: Convert to fraction form
    21,865,027.20/30,177,429.12 = 12,702,984/x
  3. Step 3: Cross multiply
    21,865,027.20x = 30,177,429.12 × 12,702,984
  4. Step 4: Simplify right side
    21,865,027.20x = 383,343,399,272,494.06
  5. Step 5: Solve for x
    x = 383,343,399,272,494.06/21,865,027.20
  6. Step 6: Final answer
    x = 17,532,262.63

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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.