Home / 12,973,640.36-17,902,855.78-7,172,076.11

Finding the Fourth Proportional to 12,973,640.36, 17,902,855.78 and 7,172,076.11

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Solution

The fourth proportional to 12,973,640.36, 17,902,855.78 and 7,172,076.11 is: 9,897,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,973,640.36 : 17,902,855.78 = 7,172,076.11 : x
  2. Step 2: Convert to fraction form
    12,973,640.36/17,902,855.78 = 7,172,076.11/x
  3. Step 3: Cross multiply
    12,973,640.36x = 17,902,855.78 × 7,172,076.11
  4. Step 4: Simplify right side
    12,973,640.36x = 128,400,644,133,068.95
  5. Step 5: Solve for x
    x = 128,400,644,133,068.95/12,973,640.36
  6. Step 6: Final answer
    x = 9,897,040.51

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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.