Home / 15,857,838-21,881,959.92-9,330,031.80

Finding the Fourth Proportional to 15,857,838, 21,881,959.92 and 9,330,031.80

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Solution

The fourth proportional to 15,857,838, 21,881,959.92 and 9,330,031.80 is: 12,874,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,857,838 : 21,881,959.92 = 9,330,031.80 : x
  2. Step 2: Convert to fraction form
    15,857,838/21,881,959.92 = 9,330,031.80/x
  3. Step 3: Cross multiply
    15,857,838x = 21,881,959.92 × 9,330,031.80
  4. Step 4: Simplify right side
    15,857,838x = 204,159,381,899,925.50
  5. Step 5: Solve for x
    x = 204,159,381,899,925.50/15,857,838
  6. Step 6: Final answer
    x = 12,874,351.59

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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.