Home / 40,006,715.76-55,209,436.92-21,672,001.26

Finding the Fourth Proportional to 40,006,715.76, 55,209,436.92 and 21,672,001.26

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Solution

The fourth proportional to 40,006,715.76, 55,209,436.92 and 21,672,001.26 is: 29,907,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,006,715.76 : 55,209,436.92 = 21,672,001.26 : x
  2. Step 2: Convert to fraction form
    40,006,715.76/55,209,436.92 = 21,672,001.26/x
  3. Step 3: Cross multiply
    40,006,715.76x = 55,209,436.92 × 21,672,001.26
  4. Step 4: Simplify right side
    40,006,715.76x = 1,196,498,986,494,130.75
  5. Step 5: Solve for x
    x = 1,196,498,986,494,130.75/40,006,715.76
  6. Step 6: Final answer
    x = 29,907,453.38

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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.