Home / 21,652,584.72-29,880,565.98-11,863,400.22

Finding the Fourth Proportional to 21,652,584.72, 29,880,565.98 and 11,863,400.22

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Solution

The fourth proportional to 21,652,584.72, 29,880,565.98 and 11,863,400.22 is: 16,371,491.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652,584.72 : 29,880,565.98 = 11,863,400.22 : x
  2. Step 2: Convert to fraction form
    21,652,584.72/29,880,565.98 = 11,863,400.22/x
  3. Step 3: Cross multiply
    21,652,584.72x = 29,880,565.98 × 11,863,400.22
  4. Step 4: Simplify right side
    21,652,584.72x = 354,485,113,020,856.56
  5. Step 5: Solve for x
    x = 354,485,113,020,856.56/21,652,584.72
  6. Step 6: Final answer
    x = 16,371,491.79

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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.