Home / 39,974,222.22-55,164,602.70-21,639,507.72

Finding the Fourth Proportional to 39,974,222.22, 55,164,602.70 and 21,639,507.72

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Solution

The fourth proportional to 39,974,222.22, 55,164,602.70 and 21,639,507.72 is: 29,862,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,974,222.22 : 55,164,602.70 = 21,639,507.72 : x
  2. Step 2: Convert to fraction form
    39,974,222.22/55,164,602.70 = 21,639,507.72/x
  3. Step 3: Cross multiply
    39,974,222.22x = 55,164,602.70 × 21,639,507.72
  4. Step 4: Simplify right side
    39,974,222.22x = 1,193,734,845,997,382.75
  5. Step 5: Solve for x
    x = 1,193,734,845,997,382.75/39,974,222.22
  6. Step 6: Final answer
    x = 29,862,615.95

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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.