Home / 100,788,682.50-139,014,116.97-76,009,912.38

Finding the Fourth Proportional to 100,788,682.50, 139,014,116.97 and 76,009,912.38

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Solution

The fourth proportional to 100,788,682.50, 139,014,116.97 and 76,009,912.38 is: 104,837,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,788,682.50 : 139,014,116.97 = 76,009,912.38 : x
  2. Step 2: Convert to fraction form
    100,788,682.50/139,014,116.97 = 76,009,912.38/x
  3. Step 3: Cross multiply
    100,788,682.50x = 139,014,116.97 × 76,009,912.38
  4. Step 4: Simplify right side
    100,788,682.50x = 10,566,450,850,472,770
  5. Step 5: Solve for x
    x = 10,566,450,850,472,770/100,788,682.50
  6. Step 6: Final answer
    x = 104,837,672.13

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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.