Home / 314,928,374.20-472,392,561.30-199,286,812.60

Finding the Fourth Proportional to 314,928,374.20, 472,392,561.30 and 199,286,812.60

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Solution

The fourth proportional to 314,928,374.20, 472,392,561.30 and 199,286,812.60 is: 298,930,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,374.20 : 472,392,561.30 = 199,286,812.60 : x
  2. Step 2: Convert to fraction form
    314,928,374.20/472,392,561.30 = 199,286,812.60/x
  3. Step 3: Cross multiply
    314,928,374.20x = 472,392,561.30 × 199,286,812.60
  4. Step 4: Simplify right side
    314,928,374.20x = 94,141,607,837,427,104
  5. Step 5: Solve for x
    x = 94,141,607,837,427,104/314,928,374.20
  6. Step 6: Final answer
    x = 298,930,218.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.