Home / 21,010,999.59-28,995,623.10-11,843,639.91

Finding the Fourth Proportional to 21,010,999.59, 28,995,623.10 and 11,843,639.91

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Solution

The fourth proportional to 21,010,999.59, 28,995,623.10 and 11,843,639.91 is: 16,344,473.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010,999.59 : 28,995,623.10 = 11,843,639.91 : x
  2. Step 2: Convert to fraction form
    21,010,999.59/28,995,623.10 = 11,843,639.91/x
  3. Step 3: Cross multiply
    21,010,999.59x = 28,995,623.10 × 11,843,639.91
  4. Step 4: Simplify right side
    21,010,999.59x = 343,413,718,962,477.94
  5. Step 5: Solve for x
    x = 343,413,718,962,477.94/21,010,999.59
  6. Step 6: Final answer
    x = 16,344,473.16

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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.