Home / 15,679,961.46-21,636,336.33-9,152,093.70

Finding the Fourth Proportional to 15,679,961.46, 21,636,336.33 and 9,152,093.70

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Solution

The fourth proportional to 15,679,961.46, 21,636,336.33 and 9,152,093.70 is: 12,628,715.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,679,961.46 : 21,636,336.33 = 9,152,093.70 : x
  2. Step 2: Convert to fraction form
    15,679,961.46/21,636,336.33 = 9,152,093.70/x
  3. Step 3: Cross multiply
    15,679,961.46x = 21,636,336.33 × 9,152,093.70
  4. Step 4: Simplify right side
    15,679,961.46x = 198,017,777,416,874.09
  5. Step 5: Solve for x
    x = 198,017,777,416,874.09/15,679,961.46
  6. Step 6: Final answer
    x = 12,628,715.82

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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.