Home / 28,233,148.53-42,331,138.16-18,619,213.17

Finding the Fourth Proportional to 28,233,148.53, 42,331,138.16 and 18,619,213.17

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Solution

The fourth proportional to 28,233,148.53, 42,331,138.16 and 18,619,213.17 is: 27,916,563.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233,148.53 : 42,331,138.16 = 18,619,213.17 : x
  2. Step 2: Convert to fraction form
    28,233,148.53/42,331,138.16 = 18,619,213.17/x
  3. Step 3: Cross multiply
    28,233,148.53x = 42,331,138.16 × 18,619,213.17
  4. Step 4: Simplify right side
    28,233,148.53x = 788,172,485,036,665.62
  5. Step 5: Solve for x
    x = 788,172,485,036,665.62/28,233,148.53
  6. Step 6: Final answer
    x = 27,916,563.55

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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.