Home / 21,141,916.34-29,179,934.62-13,786,980.44

Finding the Fourth Proportional to 21,141,916.34, 29,179,934.62 and 13,786,980.44

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Solution

The fourth proportional to 21,141,916.34, 29,179,934.62 and 13,786,980.44 is: 19,028,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,916.34 : 29,179,934.62 = 13,786,980.44 : x
  2. Step 2: Convert to fraction form
    21,141,916.34/29,179,934.62 = 13,786,980.44/x
  3. Step 3: Cross multiply
    21,141,916.34x = 29,179,934.62 × 13,786,980.44
  4. Step 4: Simplify right side
    21,141,916.34x = 402,303,187,846,418.81
  5. Step 5: Solve for x
    x = 402,303,187,846,418.81/21,141,916.34
  6. Step 6: Final answer
    x = 19,028,700.21

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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.