Home / 6,940,983-9,578,489.82-3,999,719.50

Finding the Fourth Proportional to 6,940,983, 9,578,489.82 and 3,999,719.50

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Solution

The fourth proportional to 6,940,983, 9,578,489.82 and 3,999,719.50 is: 5,519,574.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940,983 : 9,578,489.82 = 3,999,719.50 : x
  2. Step 2: Convert to fraction form
    6,940,983/9,578,489.82 = 3,999,719.50/x
  3. Step 3: Cross multiply
    6,940,983x = 9,578,489.82 × 3,999,719.50
  4. Step 4: Simplify right side
    6,940,983x = 38,311,272,513,605.49
  5. Step 5: Solve for x
    x = 38,311,272,513,605.49/6,940,983
  6. Step 6: Final answer
    x = 5,519,574.46

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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.