Home / 126,061,930.70-189,037,978.04-66,961,377.98

Finding the Fourth Proportional to 126,061,930.70, 189,037,978.04 and 66,961,377.98

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Solution

The fourth proportional to 126,061,930.70, 189,037,978.04 and 66,961,377.98 is: 100,412,895.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,061,930.70 : 189,037,978.04 = 66,961,377.98 : x
  2. Step 2: Convert to fraction form
    126,061,930.70/189,037,978.04 = 66,961,377.98/x
  3. Step 3: Cross multiply
    126,061,930.70x = 189,037,978.04 × 66,961,377.98
  4. Step 4: Simplify right side
    126,061,930.70x = 12,658,243,498,831,382
  5. Step 5: Solve for x
    x = 12,658,243,498,831,382/126,061,930.70
  6. Step 6: Final answer
    x = 100,412,895.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.