Home / 28,105,418.70-42,173,874.45-11,928,617.10

Finding the Fourth Proportional to 28,105,418.70, 42,173,874.45 and 11,928,617.10

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Solution

The fourth proportional to 28,105,418.70, 42,173,874.45 and 11,928,617.10 is: 17,899,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105,418.70 : 42,173,874.45 = 11,928,617.10 : x
  2. Step 2: Convert to fraction form
    28,105,418.70/42,173,874.45 = 11,928,617.10/x
  3. Step 3: Cross multiply
    28,105,418.70x = 42,173,874.45 × 11,928,617.10
  4. Step 4: Simplify right side
    28,105,418.70x = 503,075,999,937,523.12
  5. Step 5: Solve for x
    x = 503,075,999,937,523.12/28,105,418.70
  6. Step 6: Final answer
    x = 17,899,608.80

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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.