Home / 21,251,566.20-31,900,968.90-11,685,628.20

Finding the Fourth Proportional to 21,251,566.20, 31,900,968.90 and 11,685,628.20

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Solution

The fourth proportional to 21,251,566.20, 31,900,968.90 and 11,685,628.20 is: 17,541,430.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,251,566.20 : 31,900,968.90 = 11,685,628.20 : x
  2. Step 2: Convert to fraction form
    21,251,566.20/31,900,968.90 = 11,685,628.20/x
  3. Step 3: Cross multiply
    21,251,566.20x = 31,900,968.90 × 11,685,628.20
  4. Step 4: Simplify right side
    21,251,566.20x = 372,782,861,785,162.94
  5. Step 5: Solve for x
    x = 372,782,861,785,162.94/21,251,566.20
  6. Step 6: Final answer
    x = 17,541,430.04

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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.