Home / 664,288,001.80-996,432,002.70-480,621,992.20

Finding the Fourth Proportional to 664,288,001.80, 996,432,002.70 and 480,621,992.20

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Solution

The fourth proportional to 664,288,001.80, 996,432,002.70 and 480,621,992.20 is: 720,932,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,288,001.80 : 996,432,002.70 = 480,621,992.20 : x
  2. Step 2: Convert to fraction form
    664,288,001.80/996,432,002.70 = 480,621,992.20/x
  3. Step 3: Cross multiply
    664,288,001.80x = 996,432,002.70 × 480,621,992.20
  4. Step 4: Simplify right side
    664,288,001.80x = 478,907,134,229,509,760
  5. Step 5: Solve for x
    x = 478,907,134,229,509,760/664,288,001.80
  6. Step 6: Final answer
    x = 720,932,988.30

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Half scale
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Double scale
Find fourth proportional to 664,288,002.80, 996,432,004.20 and 480,621,993.20
Similar ratio
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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.