Home / 217,837,214.28-300,626,013.69-122,497,728.80

Finding the Fourth Proportional to 217,837,214.28, 300,626,013.69 and 122,497,728.80

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Solution

The fourth proportional to 217,837,214.28, 300,626,013.69 and 122,497,728.80 is: 169,052,859.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,837,214.28 : 300,626,013.69 = 122,497,728.80 : x
  2. Step 2: Convert to fraction form
    217,837,214.28/300,626,013.69 = 122,497,728.80/x
  3. Step 3: Cross multiply
    217,837,214.28x = 300,626,013.69 × 122,497,728.80
  4. Step 4: Simplify right side
    217,837,214.28x = 36,826,003,893,719,576
  5. Step 5: Solve for x
    x = 36,826,003,893,719,576/217,837,214.28
  6. Step 6: Final answer
    x = 169,052,859.11

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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.