Home / 748,865,738.88-1,123,451,813.13-257,515,196.60

Finding the Fourth Proportional to 748,865,738.88, 1,123,451,813.13 and 257,515,196.60

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Solution

The fourth proportional to 748,865,738.88, 1,123,451,813.13 and 257,515,196.60 is: 386,325,478.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,865,738.88 : 1,123,451,813.13 = 257,515,196.60 : x
  2. Step 2: Convert to fraction form
    748,865,738.88/1,123,451,813.13 = 257,515,196.60/x
  3. Step 3: Cross multiply
    748,865,738.88x = 1,123,451,813.13 × 257,515,196.60
  4. Step 4: Simplify right side
    748,865,738.88x = 289,305,914,528,798,464
  5. Step 5: Solve for x
    x = 289,305,914,528,798,464/748,865,738.88
  6. Step 6: Final answer
    x = 386,325,478.00

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Double scale
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1.5x scale

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.