Home / 15,853,977.18-21,877,152.91-8,789,759.42

Finding the Fourth Proportional to 15,853,977.18, 21,877,152.91 and 8,789,759.42

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Solution

The fourth proportional to 15,853,977.18, 21,877,152.91 and 8,789,759.42 is: 12,129,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853,977.18 : 21,877,152.91 = 8,789,759.42 : x
  2. Step 2: Convert to fraction form
    15,853,977.18/21,877,152.91 = 8,789,759.42/x
  3. Step 3: Cross multiply
    15,853,977.18x = 21,877,152.91 × 8,789,759.42
  4. Step 4: Simplify right side
    15,853,977.18x = 192,294,910,742,092.72
  5. Step 5: Solve for x
    x = 192,294,910,742,092.72/15,853,977.18
  6. Step 6: Final answer
    x = 12,129,127.51

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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.