Home / 781,393,468.99-1,171,198,627.53-314,756,301.43

Finding the Fourth Proportional to 781,393,468.99, 1,171,198,627.53 and 314,756,301.43

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Solution

The fourth proportional to 781,393,468.99, 1,171,198,627.53 and 314,756,301.43 is: 471,775,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,393,468.99 : 1,171,198,627.53 = 314,756,301.43 : x
  2. Step 2: Convert to fraction form
    781,393,468.99/1,171,198,627.53 = 314,756,301.43/x
  3. Step 3: Cross multiply
    781,393,468.99x = 1,171,198,627.53 × 314,756,301.43
  4. Step 4: Simplify right side
    781,393,468.99x = 368,642,148,241,234,944
  5. Step 5: Solve for x
    x = 368,642,148,241,234,944/781,393,468.99
  6. Step 6: Final answer
    x = 471,775,312.79

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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.