Home / 320,030,179.80-480,045,269.70-221,394,730.20

Finding the Fourth Proportional to 320,030,179.80, 480,045,269.70 and 221,394,730.20

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Solution

The fourth proportional to 320,030,179.80, 480,045,269.70 and 221,394,730.20 is: 332,092,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,030,179.80 : 480,045,269.70 = 221,394,730.20 : x
  2. Step 2: Convert to fraction form
    320,030,179.80/480,045,269.70 = 221,394,730.20/x
  3. Step 3: Cross multiply
    320,030,179.80x = 480,045,269.70 × 221,394,730.20
  4. Step 4: Simplify right side
    320,030,179.80x = 106,279,492,969,017,728
  5. Step 5: Solve for x
    x = 106,279,492,969,017,728/320,030,179.80
  6. Step 6: Final answer
    x = 332,092,095.30

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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.