Home / 413,979,013.60-620,968,520.40-122,891,063.20

Finding the Fourth Proportional to 413,979,013.60, 620,968,520.40 and 122,891,063.20

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Solution

The fourth proportional to 413,979,013.60, 620,968,520.40 and 122,891,063.20 is: 184,336,594.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,979,013.60 : 620,968,520.40 = 122,891,063.20 : x
  2. Step 2: Convert to fraction form
    413,979,013.60/620,968,520.40 = 122,891,063.20/x
  3. Step 3: Cross multiply
    413,979,013.60x = 620,968,520.40 × 122,891,063.20
  4. Step 4: Simplify right side
    413,979,013.60x = 76,311,481,685,686,896
  5. Step 5: Solve for x
    x = 76,311,481,685,686,896/413,979,013.60
  6. Step 6: Final answer
    x = 184,336,594.80

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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.