Home / 472,393,081.60-708,589,622.40-265,768,820.80

Finding the Fourth Proportional to 472,393,081.60, 708,589,622.40 and 265,768,820.80

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Solution

The fourth proportional to 472,393,081.60, 708,589,622.40 and 265,768,820.80 is: 398,653,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,081.60 : 708,589,622.40 = 265,768,820.80 : x
  2. Step 2: Convert to fraction form
    472,393,081.60/708,589,622.40 = 265,768,820.80/x
  3. Step 3: Cross multiply
    472,393,081.60x = 708,589,622.40 × 265,768,820.80
  4. Step 4: Simplify right side
    472,393,081.60x = 188,321,028,376,365,280
  5. Step 5: Solve for x
    x = 188,321,028,376,365,280/472,393,081.60
  6. Step 6: Final answer
    x = 398,653,231.20

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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.