Home / 81,320,823,669.52-112,225,461,624.84-45,193,378,671.28

Finding the Fourth Proportional to 81,320,823,669.52, 112,225,461,624.84 and 45,193,378,671.28

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Solution

The fourth proportional to 81,320,823,669.52, 112,225,461,624.84 and 45,193,378,671.28 is: 62,368,376,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,320,823,669.52 : 112,225,461,624.84 = 45,193,378,671.28 : x
  2. Step 2: Convert to fraction form
    81,320,823,669.52/112,225,461,624.84 = 45,193,378,671.28/x
  3. Step 3: Cross multiply
    81,320,823,669.52x = 112,225,461,624.84 × 45,193,378,671.28
  4. Step 4: Simplify right side
    81,320,823,669.52x = 5,071,847,783,770,595,786,752
  5. Step 5: Solve for x
    x = 5,071,847,783,770,595,786,752/81,320,823,669.52
  6. Step 6: Final answer
    x = 62,368,376,940.97

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1.5x scale

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.