Home / 21,957,955.14-30,301,608.15-12,168,379.38

Finding the Fourth Proportional to 21,957,955.14, 30,301,608.15 and 12,168,379.38

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Solution

The fourth proportional to 21,957,955.14, 30,301,608.15 and 12,168,379.38 is: 16,792,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957,955.14 : 30,301,608.15 = 12,168,379.38 : x
  2. Step 2: Convert to fraction form
    21,957,955.14/30,301,608.15 = 12,168,379.38/x
  3. Step 3: Cross multiply
    21,957,955.14x = 30,301,608.15 × 12,168,379.38
  4. Step 4: Simplify right side
    21,957,955.14x = 368,721,463,793,299.94
  5. Step 5: Solve for x
    x = 368,721,463,793,299.94/21,957,955.14
  6. Step 6: Final answer
    x = 16,792,158.53

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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.