Home / 21,141,553.12-29,179,434.92-13,786,617.28

Finding the Fourth Proportional to 21,141,553.12, 29,179,434.92 and 13,786,617.28

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Solution

The fourth proportional to 21,141,553.12, 29,179,434.92 and 13,786,617.28 is: 19,028,200.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,553.12 : 29,179,434.92 = 13,786,617.28 : x
  2. Step 2: Convert to fraction form
    21,141,553.12/29,179,434.92 = 13,786,617.28/x
  3. Step 3: Cross multiply
    21,141,553.12x = 29,179,434.92 × 13,786,617.28
  4. Step 4: Simplify right side
    21,141,553.12x = 402,285,701,688,707.44
  5. Step 5: Solve for x
    x = 402,285,701,688,707.44/21,141,553.12
  6. Step 6: Final answer
    x = 19,028,200.03

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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.