Home / 21,116,985.36-29,141,439.78-11,459,193.36

Finding the Fourth Proportional to 21,116,985.36, 29,141,439.78 and 11,459,193.36

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Solution

The fourth proportional to 21,116,985.36, 29,141,439.78 and 11,459,193.36 is: 15,813,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,116,985.36 : 29,141,439.78 = 11,459,193.36 : x
  2. Step 2: Convert to fraction form
    21,116,985.36/29,141,439.78 = 11,459,193.36/x
  3. Step 3: Cross multiply
    21,116,985.36x = 29,141,439.78 × 11,459,193.36
  4. Step 4: Simplify right side
    21,116,985.36x = 333,937,393,227,815.88
  5. Step 5: Solve for x
    x = 333,937,393,227,815.88/21,116,985.36
  6. Step 6: Final answer
    x = 15,813,686.83

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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.