Home / 15,278,310.54-21,084,244.38-8,402,907.42

Finding the Fourth Proportional to 15,278,310.54, 21,084,244.38 and 8,402,907.42

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Solution

The fourth proportional to 15,278,310.54, 21,084,244.38 and 8,402,907.42 is: 11,596,108.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278,310.54 : 21,084,244.38 = 8,402,907.42 : x
  2. Step 2: Convert to fraction form
    15,278,310.54/21,084,244.38 = 8,402,907.42/x
  3. Step 3: Cross multiply
    15,278,310.54x = 21,084,244.38 × 8,402,907.42
  4. Step 4: Simplify right side
    15,278,310.54x = 177,168,953,545,795.28
  5. Step 5: Solve for x
    x = 177,168,953,545,795.28/15,278,310.54
  6. Step 6: Final answer
    x = 11,596,108.95

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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.