Home / 138,611,769.51-191,285,753.55-76,733,141.43

Finding the Fourth Proportional to 138,611,769.51, 191,285,753.55 and 76,733,141.43

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Solution

The fourth proportional to 138,611,769.51, 191,285,753.55 and 76,733,141.43 is: 105,892,571.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,611,769.51 : 191,285,753.55 = 76,733,141.43 : x
  2. Step 2: Convert to fraction form
    138,611,769.51/191,285,753.55 = 76,733,141.43/x
  3. Step 3: Cross multiply
    138,611,769.51x = 191,285,753.55 × 76,733,141.43
  4. Step 4: Simplify right side
    138,611,769.51x = 14,677,956,780,696,276
  5. Step 5: Solve for x
    x = 14,677,956,780,696,276/138,611,769.51
  6. Step 6: Final answer
    x = 105,892,571.98

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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.