Home / 217,837,219.78-300,626,021.28-122,497,734.30

Finding the Fourth Proportional to 217,837,219.78, 300,626,021.28 and 122,497,734.30

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Solution

The fourth proportional to 217,837,219.78, 300,626,021.28 and 122,497,734.30 is: 169,052,866.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,837,219.78 : 300,626,021.28 = 122,497,734.30 : x
  2. Step 2: Convert to fraction form
    217,837,219.78/300,626,021.28 = 122,497,734.30/x
  3. Step 3: Cross multiply
    217,837,219.78x = 300,626,021.28 × 122,497,734.30
  4. Step 4: Simplify right side
    217,837,219.78x = 36,826,006,478,423,584
  5. Step 5: Solve for x
    x = 36,826,006,478,423,584/217,837,219.78
  6. Step 6: Final answer
    x = 169,052,866.70

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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.