Home / 138,611,758.12-191,285,737.86-76,733,130.04

Finding the Fourth Proportional to 138,611,758.12, 191,285,737.86 and 76,733,130.04

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Solution

The fourth proportional to 138,611,758.12, 191,285,737.86 and 76,733,130.04 is: 105,892,556.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,611,758.12 : 191,285,737.86 = 76,733,130.04 : x
  2. Step 2: Convert to fraction form
    138,611,758.12/191,285,737.86 = 76,733,130.04/x
  3. Step 3: Cross multiply
    138,611,758.12x = 191,285,737.86 × 76,733,130.04
  4. Step 4: Simplify right side
    138,611,758.12x = 14,677,953,398,008,734
  5. Step 5: Solve for x
    x = 14,677,953,398,008,734/138,611,758.12
  6. Step 6: Final answer
    x = 105,892,556.28

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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.