Home / 15,338,681.98-21,167,823.78-8,463,606.92

Finding the Fourth Proportional to 15,338,681.98, 21,167,823.78 and 8,463,606.92

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Solution

The fourth proportional to 15,338,681.98, 21,167,823.78 and 8,463,606.92 is: 11,680,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,681.98 : 21,167,823.78 = 8,463,606.92 : x
  2. Step 2: Convert to fraction form
    15,338,681.98/21,167,823.78 = 8,463,606.92/x
  3. Step 3: Cross multiply
    15,338,681.98x = 21,167,823.78 × 8,463,606.92
  4. Step 4: Simplify right side
    15,338,681.98x = 179,156,139,825,748.56
  5. Step 5: Solve for x
    x = 179,156,139,825,748.56/15,338,681.98
  6. Step 6: Final answer
    x = 11,680,021.79

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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.