Home / 285,377,742.90-393,797,232.09-158,221,814.22

Finding the Fourth Proportional to 285,377,742.90, 393,797,232.09 and 158,221,814.22

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Solution

The fourth proportional to 285,377,742.90, 393,797,232.09 and 158,221,814.22 is: 218,332,767.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,377,742.90 : 393,797,232.09 = 158,221,814.22 : x
  2. Step 2: Convert to fraction form
    285,377,742.90/393,797,232.09 = 158,221,814.22/x
  3. Step 3: Cross multiply
    285,377,742.90x = 393,797,232.09 × 158,221,814.22
  4. Step 4: Simplify right side
    285,377,742.90x = 62,307,312,496,094,200
  5. Step 5: Solve for x
    x = 62,307,312,496,094,200/285,377,742.90
  6. Step 6: Final answer
    x = 218,332,767.87

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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.