Home / 38,985,155.30-53,800,148.49-21,343,761.38

Finding the Fourth Proportional to 38,985,155.30, 53,800,148.49 and 21,343,761.38

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Solution

The fourth proportional to 38,985,155.30, 53,800,148.49 and 21,343,761.38 is: 29,454,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985,155.30 : 53,800,148.49 = 21,343,761.38 : x
  2. Step 2: Convert to fraction form
    38,985,155.30/53,800,148.49 = 21,343,761.38/x
  3. Step 3: Cross multiply
    38,985,155.30x = 53,800,148.49 × 21,343,761.38
  4. Step 4: Simplify right side
    38,985,155.30x = 1,148,297,531,579,127.25
  5. Step 5: Solve for x
    x = 1,148,297,531,579,127.25/38,985,155.30
  6. Step 6: Final answer
    x = 29,454,737.91

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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.