Home / 28,138,604.76-38,832,488.10-15,579,659.25

Finding the Fourth Proportional to 28,138,604.76, 38,832,488.10 and 15,579,659.25

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Solution

The fourth proportional to 28,138,604.76, 38,832,488.10 and 15,579,659.25 is: 21,500,601.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,138,604.76 : 38,832,488.10 = 15,579,659.25 : x
  2. Step 2: Convert to fraction form
    28,138,604.76/38,832,488.10 = 15,579,659.25/x
  3. Step 3: Cross multiply
    28,138,604.76x = 38,832,488.10 × 15,579,659.25
  4. Step 4: Simplify right side
    28,138,604.76x = 604,996,932,427,680
  5. Step 5: Solve for x
    x = 604,996,932,427,680/28,138,604.76
  6. Step 6: Final answer
    x = 21,500,601.67

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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.