Home / 2,787,661.82-3,842,901.32-1,970,423.66

Finding the Fourth Proportional to 2,787,661.82, 3,842,901.32 and 1,970,423.66

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Solution

The fourth proportional to 2,787,661.82, 3,842,901.32 and 1,970,423.66 is: 2,716,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787,661.82 : 3,842,901.32 = 1,970,423.66 : x
  2. Step 2: Convert to fraction form
    2,787,661.82/3,842,901.32 = 1,970,423.66/x
  3. Step 3: Cross multiply
    2,787,661.82x = 3,842,901.32 × 1,970,423.66
  4. Step 4: Simplify right side
    2,787,661.82x = 7,572,143,683,973.23
  5. Step 5: Solve for x
    x = 7,572,143,683,973.23/2,787,661.82
  6. Step 6: Final answer
    x = 2,716,306.41

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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.