Home / 672,361,306.80-1,008,541,960.20-412,734,663.60

Finding the Fourth Proportional to 672,361,306.80, 1,008,541,960.20 and 412,734,663.60

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Solution

The fourth proportional to 672,361,306.80, 1,008,541,960.20 and 412,734,663.60 is: 619,101,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,361,306.80 : 1,008,541,960.20 = 412,734,663.60 : x
  2. Step 2: Convert to fraction form
    672,361,306.80/1,008,541,960.20 = 412,734,663.60/x
  3. Step 3: Cross multiply
    672,361,306.80x = 1,008,541,960.20 × 412,734,663.60
  4. Step 4: Simplify right side
    672,361,306.80x = 416,260,226,669,631,616
  5. Step 5: Solve for x
    x = 416,260,226,669,631,616/672,361,306.80
  6. Step 6: Final answer
    x = 619,101,995.40

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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.