Home / 30,325,017.80-45,393,048.30-21,821,961.80

Finding the Fourth Proportional to 30,325,017.80, 45,393,048.30 and 21,821,961.80

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Solution

The fourth proportional to 30,325,017.80, 45,393,048.30 and 21,821,961.80 is: 32,664,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,325,017.80 : 45,393,048.30 = 21,821,961.80 : x
  2. Step 2: Convert to fraction form
    30,325,017.80/45,393,048.30 = 21,821,961.80/x
  3. Step 3: Cross multiply
    30,325,017.80x = 45,393,048.30 × 21,821,961.80
  4. Step 4: Simplify right side
    30,325,017.80x = 990,565,365,988,154.88
  5. Step 5: Solve for x
    x = 990,565,365,988,154.88/30,325,017.80
  6. Step 6: Final answer
    x = 32,664,955.80

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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.