Home / 138,611,755.50-191,285,734.24-76,733,127.42

Finding the Fourth Proportional to 138,611,755.50, 191,285,734.24 and 76,733,127.42

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Solution

The fourth proportional to 138,611,755.50, 191,285,734.24 and 76,733,127.42 is: 105,892,552.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,611,755.50 : 191,285,734.24 = 76,733,127.42 : x
  2. Step 2: Convert to fraction form
    138,611,755.50/191,285,734.24 = 76,733,127.42/x
  3. Step 3: Cross multiply
    138,611,755.50x = 191,285,734.24 × 76,733,127.42
  4. Step 4: Simplify right side
    138,611,755.50x = 14,677,952,618,109,750
  5. Step 5: Solve for x
    x = 14,677,952,618,109,750/138,611,755.50
  6. Step 6: Final answer
    x = 105,892,552.66

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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.