Home / 21,010,321.78-31,506,329.67-11,160,229.66

Finding the Fourth Proportional to 21,010,321.78, 31,506,329.67 and 11,160,229.66

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Solution

The fourth proportional to 21,010,321.78, 31,506,329.67 and 11,160,229.66 is: 16,735,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010,321.78 : 31,506,329.67 = 11,160,229.66 : x
  2. Step 2: Convert to fraction form
    21,010,321.78/31,506,329.67 = 11,160,229.66/x
  3. Step 3: Cross multiply
    21,010,321.78x = 31,506,329.67 × 11,160,229.66
  4. Step 4: Simplify right side
    21,010,321.78x = 351,617,874,967,538.38
  5. Step 5: Solve for x
    x = 351,617,874,967,538.38/21,010,321.78
  6. Step 6: Final answer
    x = 16,735,482.62

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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.