Home / 21,948,928.79-30,291,381.79-12,162,442.78

Finding the Fourth Proportional to 21,948,928.79, 30,291,381.79 and 12,162,442.78

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Solution

The fourth proportional to 21,948,928.79, 30,291,381.79 and 12,162,442.78 is: 16,785,201.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,948,928.79 : 30,291,381.79 = 12,162,442.78 : x
  2. Step 2: Convert to fraction form
    21,948,928.79/30,291,381.79 = 12,162,442.78/x
  3. Step 3: Cross multiply
    21,948,928.79x = 30,291,381.79 × 12,162,442.78
  4. Step 4: Simplify right side
    21,948,928.79x = 368,417,197,748,008.94
  5. Step 5: Solve for x
    x = 368,417,197,748,008.94/21,948,928.79
  6. Step 6: Final answer
    x = 16,785,201.74

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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.