Home / 126,061,929.70-189,037,976.54-66,961,376.98

Finding the Fourth Proportional to 126,061,929.70, 189,037,976.54 and 66,961,376.98

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Solution

The fourth proportional to 126,061,929.70, 189,037,976.54 and 66,961,376.98 is: 100,412,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,061,929.70 : 189,037,976.54 = 66,961,376.98 : x
  2. Step 2: Convert to fraction form
    126,061,929.70/189,037,976.54 = 66,961,376.98/x
  3. Step 3: Cross multiply
    126,061,929.70x = 189,037,976.54 × 66,961,376.98
  4. Step 4: Simplify right side
    126,061,929.70x = 12,658,243,209,351,340
  5. Step 5: Solve for x
    x = 12,658,243,209,351,340/126,061,929.70
  6. Step 6: Final answer
    x = 100,412,894.20

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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.