Home / 30,882,138.08-42,582,404.21-19,703,670.30

Finding the Fourth Proportional to 30,882,138.08, 42,582,404.21 and 19,703,670.30

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Solution

The fourth proportional to 30,882,138.08, 42,582,404.21 and 19,703,670.30 is: 27,168,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,882,138.08 : 42,582,404.21 = 19,703,670.30 : x
  2. Step 2: Convert to fraction form
    30,882,138.08/42,582,404.21 = 19,703,670.30/x
  3. Step 3: Cross multiply
    30,882,138.08x = 42,582,404.21 × 19,703,670.30
  4. Step 4: Simplify right side
    30,882,138.08x = 839,029,653,036,653.62
  5. Step 5: Solve for x
    x = 839,029,653,036,653.62/30,882,138.08
  6. Step 6: Final answer
    x = 27,168,768.27

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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.