Home / 285,377,747.40-393,797,238.30-158,221,818.72

Finding the Fourth Proportional to 285,377,747.40, 393,797,238.30 and 158,221,818.72

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Solution

The fourth proportional to 285,377,747.40, 393,797,238.30 and 158,221,818.72 is: 218,332,774.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,377,747.40 : 393,797,238.30 = 158,221,818.72 : x
  2. Step 2: Convert to fraction form
    285,377,747.40/393,797,238.30 = 158,221,818.72/x
  3. Step 3: Cross multiply
    285,377,747.40x = 393,797,238.30 × 158,221,818.72
  4. Step 4: Simplify right side
    285,377,747.40x = 62,307,315,250,739,240
  5. Step 5: Solve for x
    x = 62,307,315,250,739,240/285,377,747.40
  6. Step 6: Final answer
    x = 218,332,774.08

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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.