Home / 315,020,128.40-472,530,192.60-204,055,247.60

Finding the Fourth Proportional to 315,020,128.40, 472,530,192.60 and 204,055,247.60

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Solution

The fourth proportional to 315,020,128.40, 472,530,192.60 and 204,055,247.60 is: 306,082,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,020,128.40 : 472,530,192.60 = 204,055,247.60 : x
  2. Step 2: Convert to fraction form
    315,020,128.40/472,530,192.60 = 204,055,247.60/x
  3. Step 3: Cross multiply
    315,020,128.40x = 472,530,192.60 × 204,055,247.60
  4. Step 4: Simplify right side
    315,020,128.40x = 96,422,265,449,468,688
  5. Step 5: Solve for x
    x = 96,422,265,449,468,688/315,020,128.40
  6. Step 6: Final answer
    x = 306,082,871.40

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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.