Home / 645,159,982.80-967,739,974.20-160,485,790.80

Finding the Fourth Proportional to 645,159,982.80, 967,739,974.20 and 160,485,790.80

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Solution

The fourth proportional to 645,159,982.80, 967,739,974.20 and 160,485,790.80 is: 240,728,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,159,982.80 : 967,739,974.20 = 160,485,790.80 : x
  2. Step 2: Convert to fraction form
    645,159,982.80/967,739,974.20 = 160,485,790.80/x
  3. Step 3: Cross multiply
    645,159,982.80x = 967,739,974.20 × 160,485,790.80
  4. Step 4: Simplify right side
    645,159,982.80x = 155,308,515,048,258,624
  5. Step 5: Solve for x
    x = 155,308,515,048,258,624/645,159,982.80
  6. Step 6: Final answer
    x = 240,728,686.20

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Double scale
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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.