Home / 908,335,646.25-1,253,503,695.63-490,647,933.82

Finding the Fourth Proportional to 908,335,646.25, 1,253,503,695.63 and 490,647,933.82

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Solution

The fourth proportional to 908,335,646.25, 1,253,503,695.63 and 490,647,933.82 is: 677,094,420.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,335,646.25 : 1,253,503,695.63 = 490,647,933.82 : x
  2. Step 2: Convert to fraction form
    908,335,646.25/1,253,503,695.63 = 490,647,933.82/x
  3. Step 3: Cross multiply
    908,335,646.25x = 1,253,503,695.63 × 490,647,933.82
  4. Step 4: Simplify right side
    908,335,646.25x = 615,028,998,296,593,664
  5. Step 5: Solve for x
    x = 615,028,998,296,593,664/908,335,646.25
  6. Step 6: Final answer
    x = 677,094,420.81

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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.