Home / 38,480,942.91-53,103,045.15-20,839,702.29

Finding the Fourth Proportional to 38,480,942.91, 53,103,045.15 and 20,839,702.29

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Solution

The fourth proportional to 38,480,942.91, 53,103,045.15 and 20,839,702.29 is: 28,758,433.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480,942.91 : 53,103,045.15 = 20,839,702.29 : x
  2. Step 2: Convert to fraction form
    38,480,942.91/53,103,045.15 = 20,839,702.29/x
  3. Step 3: Cross multiply
    38,480,942.91x = 53,103,045.15 × 20,839,702.29
  4. Step 4: Simplify right side
    38,480,942.91x = 1,106,651,651,618,428.38
  5. Step 5: Solve for x
    x = 1,106,651,651,618,428.38/38,480,942.91
  6. Step 6: Final answer
    x = 28,758,433.86

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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.