Home / 219,302,728.20-328,828,121.10-65,925,793.80

Finding the Fourth Proportional to 219,302,728.20, 328,828,121.10 and 65,925,793.80

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Solution

The fourth proportional to 219,302,728.20, 328,828,121.10 and 65,925,793.80 is: 98,850,821.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,302,728.20 : 328,828,121.10 = 65,925,793.80 : x
  2. Step 2: Convert to fraction form
    219,302,728.20/328,828,121.10 = 65,925,793.80/x
  3. Step 3: Cross multiply
    219,302,728.20x = 328,828,121.10 × 65,925,793.80
  4. Step 4: Simplify right side
    219,302,728.20x = 21,678,254,907,280,028
  5. Step 5: Solve for x
    x = 21,678,254,907,280,028/219,302,728.20
  6. Step 6: Final answer
    x = 98,850,821.81

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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.