Home / 472,393,025.40-708,589,538.10-265,768,764.60

Finding the Fourth Proportional to 472,393,025.40, 708,589,538.10 and 265,768,764.60

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Solution

The fourth proportional to 472,393,025.40, 708,589,538.10 and 265,768,764.60 is: 398,653,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,025.40 : 708,589,538.10 = 265,768,764.60 : x
  2. Step 2: Convert to fraction form
    472,393,025.40/708,589,538.10 = 265,768,764.60/x
  3. Step 3: Cross multiply
    472,393,025.40x = 708,589,538.10 × 265,768,764.60
  4. Step 4: Simplify right side
    472,393,025.40x = 188,320,966,149,321,632
  5. Step 5: Solve for x
    x = 188,320,966,149,321,632/472,393,025.40
  6. Step 6: Final answer
    x = 398,653,146.90

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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.