Home / 315,020,318.40-472,530,477.60-204,055,437.60

Finding the Fourth Proportional to 315,020,318.40, 472,530,477.60 and 204,055,437.60

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Solution

The fourth proportional to 315,020,318.40, 472,530,477.60 and 204,055,437.60 is: 306,083,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,020,318.40 : 472,530,477.60 = 204,055,437.60 : x
  2. Step 2: Convert to fraction form
    315,020,318.40/472,530,477.60 = 204,055,437.60/x
  3. Step 3: Cross multiply
    315,020,318.40x = 472,530,477.60 × 204,055,437.60
  4. Step 4: Simplify right side
    315,020,318.40x = 96,422,413,386,004,992
  5. Step 5: Solve for x
    x = 96,422,413,386,004,992/315,020,318.40
  6. Step 6: Final answer
    x = 306,083,156.40

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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.