Home / 15,853,991.10-21,877,776.63-8,978,523.18

Finding the Fourth Proportional to 15,853,991.10, 21,877,776.63 and 8,978,523.18

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Solution

The fourth proportional to 15,853,991.10, 21,877,776.63 and 8,978,523.18 is: 12,389,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853,991.10 : 21,877,776.63 = 8,978,523.18 : x
  2. Step 2: Convert to fraction form
    15,853,991.10/21,877,776.63 = 8,978,523.18/x
  3. Step 3: Cross multiply
    15,853,991.10x = 21,877,776.63 × 8,978,523.18
  4. Step 4: Simplify right side
    15,853,991.10x = 196,430,124,599,317.28
  5. Step 5: Solve for x
    x = 196,430,124,599,317.28/15,853,991.10
  6. Step 6: Final answer
    x = 12,389,947.95

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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.