Home / 12,821,238.78-17,693,311.59-7,020,380.04

Finding the Fourth Proportional to 12,821,238.78, 17,693,311.59 and 7,020,380.04

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Solution

The fourth proportional to 12,821,238.78, 17,693,311.59 and 7,020,380.04 is: 9,688,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821,238.78 : 17,693,311.59 = 7,020,380.04 : x
  2. Step 2: Convert to fraction form
    12,821,238.78/17,693,311.59 = 7,020,380.04/x
  3. Step 3: Cross multiply
    12,821,238.78x = 17,693,311.59 × 7,020,380.04
  4. Step 4: Simplify right side
    12,821,238.78x = 124,213,771,527,936.66
  5. Step 5: Solve for x
    x = 124,213,771,527,936.66/12,821,238.78
  6. Step 6: Final answer
    x = 9,688,125.59

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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.