Home / 721,754,465.37-995,850,450.60-408,488,679.24

Finding the Fourth Proportional to 721,754,465.37, 995,850,450.60 and 408,488,679.24

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Solution

The fourth proportional to 721,754,465.37, 995,850,450.60 and 408,488,679.24 is: 563,617,760.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,754,465.37 : 995,850,450.60 = 408,488,679.24 : x
  2. Step 2: Convert to fraction form
    721,754,465.37/995,850,450.60 = 408,488,679.24/x
  3. Step 3: Cross multiply
    721,754,465.37x = 995,850,450.60 × 408,488,679.24
  4. Step 4: Simplify right side
    721,754,465.37x = 406,793,635,286,152,896
  5. Step 5: Solve for x
    x = 406,793,635,286,152,896/721,754,465.37
  6. Step 6: Final answer
    x = 563,617,760.34

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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.