Home / 472,395,940.80-708,593,911.20-144,921,996.60

Finding the Fourth Proportional to 472,395,940.80, 708,593,911.20 and 144,921,996.60

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Solution

The fourth proportional to 472,395,940.80, 708,593,911.20 and 144,921,996.60 is: 217,382,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,940.80 : 708,593,911.20 = 144,921,996.60 : x
  2. Step 2: Convert to fraction form
    472,395,940.80/708,593,911.20 = 144,921,996.60/x
  3. Step 3: Cross multiply
    472,395,940.80x = 708,593,911.20 × 144,921,996.60
  4. Step 4: Simplify right side
    472,395,940.80x = 102,690,844,389,707,104
  5. Step 5: Solve for x
    x = 102,690,844,389,707,104/472,395,940.80
  6. Step 6: Final answer
    x = 217,382,994.90

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1.5x scale

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.