Home / 129,222,242.74-178,392,507.06-99,787,497.22

Finding the Fourth Proportional to 129,222,242.74, 178,392,507.06 and 99,787,497.22

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Solution

The fourth proportional to 129,222,242.74, 178,392,507.06 and 99,787,497.22 is: 137,757,567.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,222,242.74 : 178,392,507.06 = 99,787,497.22 : x
  2. Step 2: Convert to fraction form
    129,222,242.74/178,392,507.06 = 99,787,497.22/x
  3. Step 3: Cross multiply
    129,222,242.74x = 178,392,507.06 × 99,787,497.22
  4. Step 4: Simplify right side
    129,222,242.74x = 17,801,341,802,318,580
  5. Step 5: Solve for x
    x = 17,801,341,802,318,580/129,222,242.74
  6. Step 6: Final answer
    x = 137,757,567.31

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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.