Home / 305,948,163.12-422,206,127.64-166,718,494.32

Finding the Fourth Proportional to 305,948,163.12, 422,206,127.64 and 166,718,494.32

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Solution

The fourth proportional to 305,948,163.12, 422,206,127.64 and 166,718,494.32 is: 230,070,248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,948,163.12 : 422,206,127.64 = 166,718,494.32 : x
  2. Step 2: Convert to fraction form
    305,948,163.12/422,206,127.64 = 166,718,494.32/x
  3. Step 3: Cross multiply
    305,948,163.12x = 422,206,127.64 × 166,718,494.32
  4. Step 4: Simplify right side
    305,948,163.12x = 70,389,569,892,818,528
  5. Step 5: Solve for x
    x = 70,389,569,892,818,528/305,948,163.12
  6. Step 6: Final answer
    x = 230,070,248.42

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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.