Home / 21,109,957.08-29,131,518.24-11,817,603.55

Finding the Fourth Proportional to 21,109,957.08, 29,131,518.24 and 11,817,603.55

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Solution

The fourth proportional to 21,109,957.08, 29,131,518.24 and 11,817,603.55 is: 16,308,168.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,109,957.08 : 29,131,518.24 = 11,817,603.55 : x
  2. Step 2: Convert to fraction form
    21,109,957.08/29,131,518.24 = 11,817,603.55/x
  3. Step 3: Cross multiply
    21,109,957.08x = 29,131,518.24 × 11,817,603.55
  4. Step 4: Simplify right side
    21,109,957.08x = 344,264,733,369,913.75
  5. Step 5: Solve for x
    x = 344,264,733,369,913.75/21,109,957.08
  6. Step 6: Final answer
    x = 16,308,168.33

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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.