Home / 21,912,968.97-30,249,583.11-13,095,531.72

Finding the Fourth Proportional to 21,912,968.97, 30,249,583.11 and 13,095,531.72

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Solution

The fourth proportional to 21,912,968.97, 30,249,583.11 and 13,095,531.72 is: 18,077,622.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,912,968.97 : 30,249,583.11 = 13,095,531.72 : x
  2. Step 2: Convert to fraction form
    21,912,968.97/30,249,583.11 = 13,095,531.72/x
  3. Step 3: Cross multiply
    21,912,968.97x = 30,249,583.11 × 13,095,531.72
  4. Step 4: Simplify right side
    21,912,968.97x = 396,134,375,133,781.25
  5. Step 5: Solve for x
    x = 396,134,375,133,781.25/21,912,968.97
  6. Step 6: Final answer
    x = 18,077,622.24

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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.