Home / 255,780,721.69-352,977,147.16-138,305,770.65

Finding the Fourth Proportional to 255,780,721.69, 352,977,147.16 and 138,305,770.65

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Solution

The fourth proportional to 255,780,721.69, 352,977,147.16 and 138,305,770.65 is: 190,861,828.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,780,721.69 : 352,977,147.16 = 138,305,770.65 : x
  2. Step 2: Convert to fraction form
    255,780,721.69/352,977,147.16 = 138,305,770.65/x
  3. Step 3: Cross multiply
    255,780,721.69x = 352,977,147.16 × 138,305,770.65
  4. Step 4: Simplify right side
    255,780,721.69x = 48,818,776,359,456,504
  5. Step 5: Solve for x
    x = 48,818,776,359,456,504/255,780,721.69
  6. Step 6: Final answer
    x = 190,861,828.98

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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.