Home / 5,261,116.92-7,891,905-1,667,148.72

Finding the Fourth Proportional to 5,261,116.92, 7,891,905 and 1,667,148.72

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Solution

The fourth proportional to 5,261,116.92, 7,891,905 and 1,667,148.72 is: 2,500,795.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261,116.92 : 7,891,905 = 1,667,148.72 : x
  2. Step 2: Convert to fraction form
    5,261,116.92/7,891,905 = 1,667,148.72/x
  3. Step 3: Cross multiply
    5,261,116.92x = 7,891,905 × 1,667,148.72
  4. Step 4: Simplify right side
    5,261,116.92x = 13,156,979,319,111.60
  5. Step 5: Solve for x
    x = 13,156,979,319,111.60/5,261,116.92
  6. Step 6: Final answer
    x = 2,500,795.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.