Home / 693,418,249.18-1,040,484,975.68-324,990,631.14

Finding the Fourth Proportional to 693,418,249.18, 1,040,484,975.68 and 324,990,631.14

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Solution

The fourth proportional to 693,418,249.18, 1,040,484,975.68 and 324,990,631.14 is: 487,653,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,418,249.18 : 1,040,484,975.68 = 324,990,631.14 : x
  2. Step 2: Convert to fraction form
    693,418,249.18/1,040,484,975.68 = 324,990,631.14/x
  3. Step 3: Cross multiply
    693,418,249.18x = 1,040,484,975.68 × 324,990,631.14
  4. Step 4: Simplify right side
    693,418,249.18x = 338,147,868,935,945,280
  5. Step 5: Solve for x
    x = 338,147,868,935,945,280/693,418,249.18
  6. Step 6: Final answer
    x = 487,653,547.25

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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.