Home / 21,523,708.62-29,685,921.93-13,789,470.60

Finding the Fourth Proportional to 21,523,708.62, 29,685,921.93 and 13,789,470.60

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Solution

The fourth proportional to 21,523,708.62, 29,685,921.93 and 13,789,470.60 is: 19,018,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523,708.62 : 29,685,921.93 = 13,789,470.60 : x
  2. Step 2: Convert to fraction form
    21,523,708.62/29,685,921.93 = 13,789,470.60/x
  3. Step 3: Cross multiply
    21,523,708.62x = 29,685,921.93 × 13,789,470.60
  4. Step 4: Simplify right side
    21,523,708.62x = 409,353,147,687,630.25
  5. Step 5: Solve for x
    x = 409,353,147,687,630.25/21,523,708.62
  6. Step 6: Final answer
    x = 19,018,708.85

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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.