Home / 12,391,134.90-17,100,980.38-7,164,365.28

Finding the Fourth Proportional to 12,391,134.90, 17,100,980.38 and 7,164,365.28

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Solution

The fourth proportional to 12,391,134.90, 17,100,980.38 and 7,164,365.28 is: 9,887,526.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391,134.90 : 17,100,980.38 = 7,164,365.28 : x
  2. Step 2: Convert to fraction form
    12,391,134.90/17,100,980.38 = 7,164,365.28/x
  3. Step 3: Cross multiply
    12,391,134.90x = 17,100,980.38 × 7,164,365.28
  4. Step 4: Simplify right side
    12,391,134.90x = 122,517,670,088,433.20
  5. Step 5: Solve for x
    x = 122,517,670,088,433.20/12,391,134.90
  6. Step 6: Final answer
    x = 9,887,526.13

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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.