Home / 330,830,502.80-496,352,042.40-221,778,809.60

Finding the Fourth Proportional to 330,830,502.80, 496,352,042.40 and 221,778,809.60

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Solution

The fourth proportional to 330,830,502.80, 496,352,042.40 and 221,778,809.60 is: 332,739,466.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,830,502.80 : 496,352,042.40 = 221,778,809.60 : x
  2. Step 2: Convert to fraction form
    330,830,502.80/496,352,042.40 = 221,778,809.60/x
  3. Step 3: Cross multiply
    330,830,502.80x = 496,352,042.40 × 221,778,809.60
  4. Step 4: Simplify right side
    330,830,502.80x = 110,080,365,106,000,720
  5. Step 5: Solve for x
    x = 110,080,365,106,000,720/330,830,502.80
  6. Step 6: Final answer
    x = 332,739,466.81

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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.