Home / 472,393,690.40-708,590,535.60-165,645,945.20

Finding the Fourth Proportional to 472,393,690.40, 708,590,535.60 and 165,645,945.20

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Solution

The fourth proportional to 472,393,690.40, 708,590,535.60 and 165,645,945.20 is: 248,468,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,690.40 : 708,590,535.60 = 165,645,945.20 : x
  2. Step 2: Convert to fraction form
    472,393,690.40/708,590,535.60 = 165,645,945.20/x
  3. Step 3: Cross multiply
    472,393,690.40x = 708,590,535.60 × 165,645,945.20
  4. Step 4: Simplify right side
    472,393,690.40x = 117,375,149,029,236,240
  5. Step 5: Solve for x
    x = 117,375,149,029,236,240/472,393,690.40
  6. Step 6: Final answer
    x = 248,468,917.80

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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.