Home / 15,886,681.17-21,921,865.83-8,915,759.88

Finding the Fourth Proportional to 15,886,681.17, 21,921,865.83 and 8,915,759.88

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Solution

The fourth proportional to 15,886,681.17, 21,921,865.83 and 8,915,759.88 is: 12,302,764.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886,681.17 : 21,921,865.83 = 8,915,759.88 : x
  2. Step 2: Convert to fraction form
    15,886,681.17/21,921,865.83 = 8,915,759.88/x
  3. Step 3: Cross multiply
    15,886,681.17x = 21,921,865.83 × 8,915,759.88
  4. Step 4: Simplify right side
    15,886,681.17x = 195,450,091,861,856.91
  5. Step 5: Solve for x
    x = 195,450,091,861,856.91/15,886,681.17
  6. Step 6: Final answer
    x = 12,302,764.17

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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.