Home / 15,371,868.15-21,213,629.06-8,402,930.69

Finding the Fourth Proportional to 15,371,868.15, 21,213,629.06 and 8,402,930.69

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Solution

The fourth proportional to 15,371,868.15, 21,213,629.06 and 8,402,930.69 is: 11,596,290.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,371,868.15 : 21,213,629.06 = 8,402,930.69 : x
  2. Step 2: Convert to fraction form
    15,371,868.15/21,213,629.06 = 8,402,930.69/x
  3. Step 3: Cross multiply
    15,371,868.15x = 21,213,629.06 × 8,402,930.69
  4. Step 4: Simplify right side
    15,371,868.15x = 178,256,654,526,467.06
  5. Step 5: Solve for x
    x = 178,256,654,526,467.06/15,371,868.15
  6. Step 6: Final answer
    x = 11,596,290.89

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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.