Home / 314,928,018.20-472,392,027.30-257,532,390.20

Finding the Fourth Proportional to 314,928,018.20, 472,392,027.30 and 257,532,390.20

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Solution

The fourth proportional to 314,928,018.20, 472,392,027.30 and 257,532,390.20 is: 386,298,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,018.20 : 472,392,027.30 = 257,532,390.20 : x
  2. Step 2: Convert to fraction form
    314,928,018.20/472,392,027.30 = 257,532,390.20/x
  3. Step 3: Cross multiply
    314,928,018.20x = 472,392,027.30 × 257,532,390.20
  4. Step 4: Simplify right side
    314,928,018.20x = 121,656,247,901,992,656
  5. Step 5: Solve for x
    x = 121,656,247,901,992,656/314,928,018.20
  6. Step 6: Final answer
    x = 386,298,585.30

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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.