Home / 138,611,755.25-191,285,733.89-76,733,127.17

Finding the Fourth Proportional to 138,611,755.25, 191,285,733.89 and 76,733,127.17

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Solution

The fourth proportional to 138,611,755.25, 191,285,733.89 and 76,733,127.17 is: 105,892,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,611,755.25 : 191,285,733.89 = 76,733,127.17 : x
  2. Step 2: Convert to fraction form
    138,611,755.25/191,285,733.89 = 76,733,127.17/x
  3. Step 3: Cross multiply
    138,611,755.25x = 191,285,733.89 × 76,733,127.17
  4. Step 4: Simplify right side
    138,611,755.25x = 14,677,952,543,623,556
  5. Step 5: Solve for x
    x = 14,677,952,543,623,556/138,611,755.25
  6. Step 6: Final answer
    x = 105,892,552.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.