Home / 431,682,809.70-647,524,214.55-402,772,419.30

Finding the Fourth Proportional to 431,682,809.70, 647,524,214.55 and 402,772,419.30

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Solution

The fourth proportional to 431,682,809.70, 647,524,214.55 and 402,772,419.30 is: 604,158,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,682,809.70 : 647,524,214.55 = 402,772,419.30 : x
  2. Step 2: Convert to fraction form
    431,682,809.70/647,524,214.55 = 402,772,419.30/x
  3. Step 3: Cross multiply
    431,682,809.70x = 647,524,214.55 × 402,772,419.30
  4. Step 4: Simplify right side
    431,682,809.70x = 260,804,894,449,635,744
  5. Step 5: Solve for x
    x = 260,804,894,449,635,744/431,682,809.70
  6. Step 6: Final answer
    x = 604,158,628.95

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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.