Home / 643,524,761.80-965,287,142.70-177,185,284.30

Finding the Fourth Proportional to 643,524,761.80, 965,287,142.70 and 177,185,284.30

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Solution

The fourth proportional to 643,524,761.80, 965,287,142.70 and 177,185,284.30 is: 265,777,926.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,524,761.80 : 965,287,142.70 = 177,185,284.30 : x
  2. Step 2: Convert to fraction form
    643,524,761.80/965,287,142.70 = 177,185,284.30/x
  3. Step 3: Cross multiply
    643,524,761.80x = 965,287,142.70 × 177,185,284.30
  4. Step 4: Simplify right side
    643,524,761.80x = 171,034,676,810,434,176
  5. Step 5: Solve for x
    x = 171,034,676,810,434,176/643,524,761.80
  6. Step 6: Final answer
    x = 265,777,926.45

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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.