Home / 18,777,802.71-25,900,429.73-13,207,862.49

Finding the Fourth Proportional to 18,777,802.71, 25,900,429.73 and 13,207,862.49

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Solution

The fourth proportional to 18,777,802.71, 25,900,429.73 and 13,207,862.49 is: 18,217,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777,802.71 : 25,900,429.73 = 13,207,862.49 : x
  2. Step 2: Convert to fraction form
    18,777,802.71/25,900,429.73 = 13,207,862.49/x
  3. Step 3: Cross multiply
    18,777,802.71x = 25,900,429.73 × 13,207,862.49
  4. Step 4: Simplify right side
    18,777,802.71x = 342,089,314,239,708.56
  5. Step 5: Solve for x
    x = 342,089,314,239,708.56/18,777,802.71
  6. Step 6: Final answer
    x = 18,217,749.95

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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.