Home / 21,948,639.39-30,286,914.66-12,157,254.50

Finding the Fourth Proportional to 21,948,639.39, 30,286,914.66 and 12,157,254.50

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Solution

The fourth proportional to 21,948,639.39, 30,286,914.66 and 12,157,254.50 is: 16,775,788.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,948,639.39 : 30,286,914.66 = 12,157,254.50 : x
  2. Step 2: Convert to fraction form
    21,948,639.39/30,286,914.66 = 12,157,254.50/x
  3. Step 3: Cross multiply
    21,948,639.39x = 30,286,914.66 × 12,157,254.50
  4. Step 4: Simplify right side
    21,948,639.39x = 368,205,729,389,966.38
  5. Step 5: Solve for x
    x = 368,205,729,389,966.38/21,948,639.39
  6. Step 6: Final answer
    x = 16,775,788.37

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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.