Home / 12,189,963.76-16,822,313.73-6,683,325.28

Finding the Fourth Proportional to 12,189,963.76, 16,822,313.73 and 6,683,325.28

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Solution

The fourth proportional to 12,189,963.76, 16,822,313.73 and 6,683,325.28 is: 9,223,078.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189,963.76 : 16,822,313.73 = 6,683,325.28 : x
  2. Step 2: Convert to fraction form
    12,189,963.76/16,822,313.73 = 6,683,325.28/x
  3. Step 3: Cross multiply
    12,189,963.76x = 16,822,313.73 × 6,683,325.28
  4. Step 4: Simplify right side
    12,189,963.76x = 112,428,994,577,744.31
  5. Step 5: Solve for x
    x = 112,428,994,577,744.31/12,189,963.76
  6. Step 6: Final answer
    x = 9,223,078.66

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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.