Home / 21,376,656.23-29,498,995.28-11,586,890.23

Finding the Fourth Proportional to 21,376,656.23, 29,498,995.28 and 11,586,890.23

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Solution

The fourth proportional to 21,376,656.23, 29,498,995.28 and 11,586,890.23 is: 15,989,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376,656.23 : 29,498,995.28 = 11,586,890.23 : x
  2. Step 2: Convert to fraction form
    21,376,656.23/29,498,995.28 = 11,586,890.23/x
  3. Step 3: Cross multiply
    21,376,656.23x = 29,498,995.28 × 11,586,890.23
  4. Step 4: Simplify right side
    21,376,656.23x = 341,801,620,159,867.81
  5. Step 5: Solve for x
    x = 341,801,620,159,867.81/21,376,656.23
  6. Step 6: Final answer
    x = 15,989,480.14

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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.