Home / 757,254,660.48-1,037,434,046.09-728,936,856.78

Finding the Fourth Proportional to 757,254,660.48, 1,037,434,046.09 and 728,936,856.78

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Solution

The fourth proportional to 757,254,660.48, 1,037,434,046.09 and 728,936,856.78 is: 998,638,835.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,254,660.48 : 1,037,434,046.09 = 728,936,856.78 : x
  2. Step 2: Convert to fraction form
    757,254,660.48/1,037,434,046.09 = 728,936,856.78/x
  3. Step 3: Cross multiply
    757,254,660.48x = 1,037,434,046.09 × 728,936,856.78
  4. Step 4: Simplify right side
    757,254,660.48x = 756,223,912,673,402,240
  5. Step 5: Solve for x
    x = 756,223,912,673,402,240/757,254,660.48
  6. Step 6: Final answer
    x = 998,638,835.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.