Home / 39,286,963.80-54,213,223.32-21,645,095.76

Finding the Fourth Proportional to 39,286,963.80, 54,213,223.32 and 21,645,095.76

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Solution

The fourth proportional to 39,286,963.80, 54,213,223.32 and 21,645,095.76 is: 29,868,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,286,963.80 : 54,213,223.32 = 21,645,095.76 : x
  2. Step 2: Convert to fraction form
    39,286,963.80/54,213,223.32 = 21,645,095.76/x
  3. Step 3: Cross multiply
    39,286,963.80x = 54,213,223.32 × 21,645,095.76
  4. Step 4: Simplify right side
    39,286,963.80x = 1,173,450,410,219,665.25
  5. Step 5: Solve for x
    x = 1,173,450,410,219,665.25/39,286,963.80
  6. Step 6: Final answer
    x = 29,868,696.81

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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.