Home / 212,947,342.86-293,868,218.70-115,162,198.86

Finding the Fourth Proportional to 212,947,342.86, 293,868,218.70 and 115,162,198.86

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Solution

The fourth proportional to 212,947,342.86, 293,868,218.70 and 115,162,198.86 is: 158,924,313.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,947,342.86 : 293,868,218.70 = 115,162,198.86 : x
  2. Step 2: Convert to fraction form
    212,947,342.86/293,868,218.70 = 115,162,198.86/x
  3. Step 3: Cross multiply
    212,947,342.86x = 293,868,218.70 × 115,162,198.86
  4. Step 4: Simplify right side
    212,947,342.86x = 33,842,510,240,563,368
  5. Step 5: Solve for x
    x = 33,842,510,240,563,368/212,947,342.86
  6. Step 6: Final answer
    x = 158,924,313.34

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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.