Home / 28,325,790-42,432,431.18-21,826,315.71

Finding the Fourth Proportional to 28,325,790, 42,432,431.18 and 21,826,315.71

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Solution

The fourth proportional to 28,325,790, 42,432,431.18 and 21,826,315.71 is: 32,696,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325,790 : 42,432,431.18 = 21,826,315.71 : x
  2. Step 2: Convert to fraction form
    28,325,790/42,432,431.18 = 21,826,315.71/x
  3. Step 3: Cross multiply
    28,325,790x = 42,432,431.18 × 21,826,315.71
  4. Step 4: Simplify right side
    28,325,790x = 926,143,639,168,396.25
  5. Step 5: Solve for x
    x = 926,143,639,168,396.25/28,325,790
  6. Step 6: Final answer
    x = 32,696,127.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.