Home / 15,853,956.60-21,877,124.40-8,789,738.76

Finding the Fourth Proportional to 15,853,956.60, 21,877,124.40 and 8,789,738.76

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Solution

The fourth proportional to 15,853,956.60, 21,877,124.40 and 8,789,738.76 is: 12,129,098.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853,956.60 : 21,877,124.40 = 8,789,738.76 : x
  2. Step 2: Convert to fraction form
    15,853,956.60/21,877,124.40 = 8,789,738.76/x
  3. Step 3: Cross multiply
    15,853,956.60x = 21,877,124.40 × 8,789,738.76
  4. Step 4: Simplify right side
    15,853,956.60x = 192,294,208,296,021.72
  5. Step 5: Solve for x
    x = 192,294,208,296,021.72/15,853,956.60
  6. Step 6: Final answer
    x = 12,129,098.95

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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.