Home / 21,119,977.50-29,145,568.95-11,462,185.50

Finding the Fourth Proportional to 21,119,977.50, 29,145,568.95 and 11,462,185.50

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Solution

The fourth proportional to 21,119,977.50, 29,145,568.95 and 11,462,185.50 is: 15,817,815.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,119,977.50 : 29,145,568.95 = 11,462,185.50 : x
  2. Step 2: Convert to fraction form
    21,119,977.50/29,145,568.95 = 11,462,185.50/x
  3. Step 3: Cross multiply
    21,119,977.50x = 29,145,568.95 × 11,462,185.50
  4. Step 4: Simplify right side
    21,119,977.50x = 334,071,917,807,940.19
  5. Step 5: Solve for x
    x = 334,071,917,807,940.19/21,119,977.50
  6. Step 6: Final answer
    x = 15,817,815.99

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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.