Home / 212,488,811.78-293,231,579.52-118,406,924.09

Finding the Fourth Proportional to 212,488,811.78, 293,231,579.52 and 118,406,924.09

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Solution

The fourth proportional to 212,488,811.78, 293,231,579.52 and 118,406,924.09 is: 163,399,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,488,811.78 : 293,231,579.52 = 118,406,924.09 : x
  2. Step 2: Convert to fraction form
    212,488,811.78/293,231,579.52 = 118,406,924.09/x
  3. Step 3: Cross multiply
    212,488,811.78x = 293,231,579.52 × 118,406,924.09
  4. Step 4: Simplify right side
    212,488,811.78x = 34,720,649,377,092,928
  5. Step 5: Solve for x
    x = 34,720,649,377,092,928/212,488,811.78
  6. Step 6: Final answer
    x = 163,399,894.27

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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.