Home / 21,116,985.34-29,141,439.79-11,459,193.34

Finding the Fourth Proportional to 21,116,985.34, 29,141,439.79 and 11,459,193.34

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Solution

The fourth proportional to 21,116,985.34, 29,141,439.79 and 11,459,193.34 is: 15,813,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,116,985.34 : 29,141,439.79 = 11,459,193.34 : x
  2. Step 2: Convert to fraction form
    21,116,985.34/29,141,439.79 = 11,459,193.34/x
  3. Step 3: Cross multiply
    21,116,985.34x = 29,141,439.79 × 11,459,193.34
  4. Step 4: Simplify right side
    21,116,985.34x = 333,937,392,759,579
  5. Step 5: Solve for x
    x = 333,937,392,759,579/21,116,985.34
  6. Step 6: Final answer
    x = 15,813,686.82

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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.