Home / 212,947,468.80-293,868,392.64-115,162,324.80

Finding the Fourth Proportional to 212,947,468.80, 293,868,392.64 and 115,162,324.80

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Solution

The fourth proportional to 212,947,468.80, 293,868,392.64 and 115,162,324.80 is: 158,924,487.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,947,468.80 : 293,868,392.64 = 115,162,324.80 : x
  2. Step 2: Convert to fraction form
    212,947,468.80/293,868,392.64 = 115,162,324.80/x
  3. Step 3: Cross multiply
    212,947,468.80x = 293,868,392.64 × 115,162,324.80
  4. Step 4: Simplify right side
    212,947,468.80x = 33,842,567,281,661,608
  5. Step 5: Solve for x
    x = 33,842,567,281,661,608/212,947,468.80
  6. Step 6: Final answer
    x = 158,924,487.21

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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.