Home / 314,928,007.20-472,392,010.80-199,286,445.60

Finding the Fourth Proportional to 314,928,007.20, 472,392,010.80 and 199,286,445.60

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Solution

The fourth proportional to 314,928,007.20, 472,392,010.80 and 199,286,445.60 is: 298,929,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,007.20 : 472,392,010.80 = 199,286,445.60 : x
  2. Step 2: Convert to fraction form
    314,928,007.20/472,392,010.80 = 199,286,445.60/x
  3. Step 3: Cross multiply
    314,928,007.20x = 472,392,010.80 × 199,286,445.60
  4. Step 4: Simplify right side
    314,928,007.20x = 94,141,324,762,168,816
  5. Step 5: Solve for x
    x = 94,141,324,762,168,816/314,928,007.20
  6. Step 6: Final answer
    x = 298,929,668.40

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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.