Home / 691,827,418.20-954,743,252.22-378,574,835.16

Finding the Fourth Proportional to 691,827,418.20, 954,743,252.22 and 378,574,835.16

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Solution

The fourth proportional to 691,827,418.20, 954,743,252.22 and 378,574,835.16 is: 522,444,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,827,418.20 : 954,743,252.22 = 378,574,835.16 : x
  2. Step 2: Convert to fraction form
    691,827,418.20/954,743,252.22 = 378,574,835.16/x
  3. Step 3: Cross multiply
    691,827,418.20x = 954,743,252.22 × 378,574,835.16
  4. Step 4: Simplify right side
    691,827,418.20x = 361,441,769,329,308,864
  5. Step 5: Solve for x
    x = 361,441,769,329,308,864/691,827,418.20
  6. Step 6: Final answer
    x = 522,444,991.08

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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.