Home / 472,392,406.80-708,588,610.20-214,112,080.80

Finding the Fourth Proportional to 472,392,406.80, 708,588,610.20 and 214,112,080.80

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Solution

The fourth proportional to 472,392,406.80, 708,588,610.20 and 214,112,080.80 is: 321,168,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,406.80 : 708,588,610.20 = 214,112,080.80 : x
  2. Step 2: Convert to fraction form
    472,392,406.80/708,588,610.20 = 214,112,080.80/x
  3. Step 3: Cross multiply
    472,392,406.80x = 708,588,610.20 × 214,112,080.80
  4. Step 4: Simplify right side
    472,392,406.80x = 151,717,381,761,102,112
  5. Step 5: Solve for x
    x = 151,717,381,761,102,112/472,392,406.80
  6. Step 6: Final answer
    x = 321,168,121.20

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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.