Home / 378,979,869.65-568,524,031.85-116,686,613.50

Finding the Fourth Proportional to 378,979,869.65, 568,524,031.85 and 116,686,613.50

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Solution

The fourth proportional to 378,979,869.65, 568,524,031.85 and 116,686,613.50 is: 175,046,616.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,979,869.65 : 568,524,031.85 = 116,686,613.50 : x
  2. Step 2: Convert to fraction form
    378,979,869.65/568,524,031.85 = 116,686,613.50/x
  3. Step 3: Cross multiply
    378,979,869.65x = 568,524,031.85 × 116,686,613.50
  4. Step 4: Simplify right side
    378,979,869.65x = 66,339,143,968,813,040
  5. Step 5: Solve for x
    x = 66,339,143,968,813,040/378,979,869.65
  6. Step 6: Final answer
    x = 175,046,616.67

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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.