Home / 15,312,286.70-21,130,689.57-8,343,021.52

Finding the Fourth Proportional to 15,312,286.70, 21,130,689.57 and 8,343,021.52

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Solution

The fourth proportional to 15,312,286.70, 21,130,689.57 and 8,343,021.52 is: 11,513,224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312,286.70 : 21,130,689.57 = 8,343,021.52 : x
  2. Step 2: Convert to fraction form
    15,312,286.70/21,130,689.57 = 8,343,021.52/x
  3. Step 3: Cross multiply
    15,312,286.70x = 21,130,689.57 × 8,343,021.52
  4. Step 4: Simplify right side
    15,312,286.70x = 176,293,797,814,949.53
  5. Step 5: Solve for x
    x = 176,293,797,814,949.53/15,312,286.70
  6. Step 6: Final answer
    x = 11,513,224.72

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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.