Home / 21,168,110.70-31,710,175.65-11,569,416.30

Finding the Fourth Proportional to 21,168,110.70, 31,710,175.65 and 11,569,416.30

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Solution

The fourth proportional to 21,168,110.70, 31,710,175.65 and 11,569,416.30 is: 17,331,174.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168,110.70 : 31,710,175.65 = 11,569,416.30 : x
  2. Step 2: Convert to fraction form
    21,168,110.70/31,710,175.65 = 11,569,416.30/x
  3. Step 3: Cross multiply
    21,168,110.70x = 31,710,175.65 × 11,569,416.30
  4. Step 4: Simplify right side
    21,168,110.70x = 366,868,223,040,973.12
  5. Step 5: Solve for x
    x = 366,868,223,040,973.12/21,168,110.70
  6. Step 6: Final answer
    x = 17,331,174.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.