Home / 138,611,760.50-191,285,741.14-76,733,132.42

Finding the Fourth Proportional to 138,611,760.50, 191,285,741.14 and 76,733,132.42

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Solution

The fourth proportional to 138,611,760.50, 191,285,741.14 and 76,733,132.42 is: 105,892,559.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,611,760.50 : 191,285,741.14 = 76,733,132.42 : x
  2. Step 2: Convert to fraction form
    138,611,760.50/191,285,741.14 = 76,733,132.42/x
  3. Step 3: Cross multiply
    138,611,760.50x = 191,285,741.14 × 76,733,132.42
  4. Step 4: Simplify right side
    138,611,760.50x = 14,677,954,103,805,200
  5. Step 5: Solve for x
    x = 14,677,954,103,805,200/138,611,760.50
  6. Step 6: Final answer
    x = 105,892,559.56

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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.