Home / 212,947,421.80-293,868,327.78-115,162,277.80

Finding the Fourth Proportional to 212,947,421.80, 293,868,327.78 and 115,162,277.80

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Solution

The fourth proportional to 212,947,421.80, 293,868,327.78 and 115,162,277.80 is: 158,924,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,947,421.80 : 293,868,327.78 = 115,162,277.80 : x
  2. Step 2: Convert to fraction form
    212,947,421.80/293,868,327.78 = 115,162,277.80/x
  3. Step 3: Cross multiply
    212,947,421.80x = 293,868,327.78 × 115,162,277.80
  4. Step 4: Simplify right side
    212,947,421.80x = 33,842,546,000,421,812
  5. Step 5: Solve for x
    x = 33,842,546,000,421,812/212,947,421.80
  6. Step 6: Final answer
    x = 158,924,422.35

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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.