Home / 15,442,668.90-21,302,029.01-9,631,361.57

Finding the Fourth Proportional to 15,442,668.90, 21,302,029.01 and 9,631,361.57

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Solution

The fourth proportional to 15,442,668.90, 21,302,029.01 and 9,631,361.57 is: 13,285,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442,668.90 : 21,302,029.01 = 9,631,361.57 : x
  2. Step 2: Convert to fraction form
    15,442,668.90/21,302,029.01 = 9,631,361.57/x
  3. Step 3: Cross multiply
    15,442,668.90x = 21,302,029.01 × 9,631,361.57
  4. Step 4: Simplify right side
    15,442,668.90x = 205,167,543,487,507.38
  5. Step 5: Solve for x
    x = 205,167,543,487,507.38/15,442,668.90
  6. Step 6: Final answer
    x = 13,285,756.81

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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.