Home / 21,972,710.88-30,316,331.43-13,148,610.57

Finding the Fourth Proportional to 21,972,710.88, 30,316,331.43 and 13,148,610.57

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Solution

The fourth proportional to 21,972,710.88, 30,316,331.43 and 13,148,610.57 is: 18,141,486.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972,710.88 : 30,316,331.43 = 13,148,610.57 : x
  2. Step 2: Convert to fraction form
    21,972,710.88/30,316,331.43 = 13,148,610.57/x
  3. Step 3: Cross multiply
    21,972,710.88x = 30,316,331.43 × 13,148,610.57
  4. Step 4: Simplify right side
    21,972,710.88x = 398,617,635,884,121.25
  5. Step 5: Solve for x
    x = 398,617,635,884,121.25/21,972,710.88
  6. Step 6: Final answer
    x = 18,141,486.41

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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.