Home / 21,018,336.64-29,007,301.07-13,179,089.81

Finding the Fourth Proportional to 21,018,336.64, 29,007,301.07 and 13,179,089.81

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Solution

The fourth proportional to 21,018,336.64, 29,007,301.07 and 13,179,089.81 is: 18,188,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,336.64 : 29,007,301.07 = 13,179,089.81 : x
  2. Step 2: Convert to fraction form
    21,018,336.64/29,007,301.07 = 13,179,089.81/x
  3. Step 3: Cross multiply
    21,018,336.64x = 29,007,301.07 × 13,179,089.81
  4. Step 4: Simplify right side
    21,018,336.64x = 382,289,826,052,705.12
  5. Step 5: Solve for x
    x = 382,289,826,052,705.12/21,018,336.64
  6. Step 6: Final answer
    x = 18,188,395.81

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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.