Home / 28,143,157.26-38,838,214.62-15,752,942.58

Finding the Fourth Proportional to 28,143,157.26, 38,838,214.62 and 15,752,942.58

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Solution

The fourth proportional to 28,143,157.26, 38,838,214.62 and 15,752,942.58 is: 21,739,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143,157.26 : 38,838,214.62 = 15,752,942.58 : x
  2. Step 2: Convert to fraction form
    28,143,157.26/38,838,214.62 = 15,752,942.58/x
  3. Step 3: Cross multiply
    28,143,157.26x = 38,838,214.62 × 15,752,942.58
  4. Step 4: Simplify right side
    28,143,157.26x = 611,816,164,818,576.50
  5. Step 5: Solve for x
    x = 611,816,164,818,576.50/28,143,157.26
  6. Step 6: Final answer
    x = 21,739,428.85

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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.