Home / 918,572,485.80-1,377,858,728.70-336,325,726.20

Finding the Fourth Proportional to 918,572,485.80, 1,377,858,728.70 and 336,325,726.20

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Solution

The fourth proportional to 918,572,485.80, 1,377,858,728.70 and 336,325,726.20 is: 504,488,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,572,485.80 : 1,377,858,728.70 = 336,325,726.20 : x
  2. Step 2: Convert to fraction form
    918,572,485.80/1,377,858,728.70 = 336,325,726.20/x
  3. Step 3: Cross multiply
    918,572,485.80x = 1,377,858,728.70 × 336,325,726.20
  4. Step 4: Simplify right side
    918,572,485.80x = 463,409,337,531,036,288
  5. Step 5: Solve for x
    x = 463,409,337,531,036,288/918,572,485.80
  6. Step 6: Final answer
    x = 504,488,589.30

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Double scale
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Similar ratio
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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.