Home / 217,837,200.76-300,625,995.04-122,497,715.27

Finding the Fourth Proportional to 217,837,200.76, 300,625,995.04 and 122,497,715.27

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Solution

The fourth proportional to 217,837,200.76, 300,625,995.04 and 122,497,715.27 is: 169,052,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,837,200.76 : 300,625,995.04 = 122,497,715.27 : x
  2. Step 2: Convert to fraction form
    217,837,200.76/300,625,995.04 = 122,497,715.27/x
  3. Step 3: Cross multiply
    217,837,200.76x = 300,625,995.04 × 122,497,715.27
  4. Step 4: Simplify right side
    217,837,200.76x = 36,825,997,543,615,672
  5. Step 5: Solve for x
    x = 36,825,997,543,615,672/217,837,200.76
  6. Step 6: Final answer
    x = 169,052,840.45

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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.