Home / 314,928,316.80-472,392,475.20-217,857,009.60

Finding the Fourth Proportional to 314,928,316.80, 472,392,475.20 and 217,857,009.60

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Solution

The fourth proportional to 314,928,316.80, 472,392,475.20 and 217,857,009.60 is: 326,785,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,316.80 : 472,392,475.20 = 217,857,009.60 : x
  2. Step 2: Convert to fraction form
    314,928,316.80/472,392,475.20 = 217,857,009.60/x
  3. Step 3: Cross multiply
    314,928,316.80x = 472,392,475.20 × 217,857,009.60
  4. Step 4: Simplify right side
    314,928,316.80x = 102,914,012,004,614,160
  5. Step 5: Solve for x
    x = 102,914,012,004,614,160/314,928,316.80
  6. Step 6: Final answer
    x = 326,785,514.40

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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.