Home / 30,271,369.80-45,407,054.70-21,183,728.70

Finding the Fourth Proportional to 30,271,369.80, 45,407,054.70 and 21,183,728.70

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Solution

The fourth proportional to 30,271,369.80, 45,407,054.70 and 21,183,728.70 is: 31,775,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,271,369.80 : 45,407,054.70 = 21,183,728.70 : x
  2. Step 2: Convert to fraction form
    30,271,369.80/45,407,054.70 = 21,183,728.70/x
  3. Step 3: Cross multiply
    30,271,369.80x = 45,407,054.70 × 21,183,728.70
  4. Step 4: Simplify right side
    30,271,369.80x = 961,890,727,830,859.88
  5. Step 5: Solve for x
    x = 961,890,727,830,859.88/30,271,369.80
  6. Step 6: Final answer
    x = 31,775,593.05

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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.