Home / 51,201,260.47-76,801,964.62-20,909,123.47

Finding the Fourth Proportional to 51,201,260.47, 76,801,964.62 and 20,909,123.47

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Solution

The fourth proportional to 51,201,260.47, 76,801,964.62 and 20,909,123.47 is: 31,363,715.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,201,260.47 : 76,801,964.62 = 20,909,123.47 : x
  2. Step 2: Convert to fraction form
    51,201,260.47/76,801,964.62 = 20,909,123.47/x
  3. Step 3: Cross multiply
    51,201,260.47x = 76,801,964.62 × 20,909,123.47
  4. Step 4: Simplify right side
    51,201,260.47x = 1,605,861,760,978,151.75
  5. Step 5: Solve for x
    x = 1,605,861,760,978,151.75/51,201,260.47
  6. Step 6: Final answer
    x = 31,363,715.39

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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.