Home / 170,747,925.82-256,083,555.74-78,543,109.15

Finding the Fourth Proportional to 170,747,925.82, 256,083,555.74 and 78,543,109.15

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Solution

The fourth proportional to 170,747,925.82, 256,083,555.74 and 78,543,109.15 is: 117,797,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,747,925.82 : 256,083,555.74 = 78,543,109.15 : x
  2. Step 2: Convert to fraction form
    170,747,925.82/256,083,555.74 = 78,543,109.15/x
  3. Step 3: Cross multiply
    170,747,925.82x = 256,083,555.74 × 78,543,109.15
  4. Step 4: Simplify right side
    170,747,925.82x = 20,113,598,670,006,932
  5. Step 5: Solve for x
    x = 20,113,598,670,006,932/170,747,925.82
  6. Step 6: Final answer
    x = 117,797,030.76

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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.