Home / 15,403,048.92-21,256,212.65-8,434,167.23

Finding the Fourth Proportional to 15,403,048.92, 21,256,212.65 and 8,434,167.23

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Solution

The fourth proportional to 15,403,048.92, 21,256,212.65 and 8,434,167.23 is: 11,639,153.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,403,048.92 : 21,256,212.65 = 8,434,167.23 : x
  2. Step 2: Convert to fraction form
    15,403,048.92/21,256,212.65 = 8,434,167.23/x
  3. Step 3: Cross multiply
    15,403,048.92x = 21,256,212.65 × 8,434,167.23
  4. Step 4: Simplify right side
    15,403,048.92x = 179,278,452,018,089.56
  5. Step 5: Solve for x
    x = 179,278,452,018,089.56/15,403,048.92
  6. Step 6: Final answer
    x = 11,639,153.58

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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.