Home / 138,611,759.12-191,285,739.24-76,733,131.04

Finding the Fourth Proportional to 138,611,759.12, 191,285,739.24 and 76,733,131.04

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Solution

The fourth proportional to 138,611,759.12, 191,285,739.24 and 76,733,131.04 is: 105,892,557.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,611,759.12 : 191,285,739.24 = 76,733,131.04 : x
  2. Step 2: Convert to fraction form
    138,611,759.12/191,285,739.24 = 76,733,131.04/x
  3. Step 3: Cross multiply
    138,611,759.12x = 191,285,739.24 × 76,733,131.04
  4. Step 4: Simplify right side
    138,611,759.12x = 14,677,953,695,186,192
  5. Step 5: Solve for x
    x = 14,677,953,695,186,192/138,611,759.12
  6. Step 6: Final answer
    x = 105,892,557.66

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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.