Home / 472,393,942.80-708,590,914.20-288,727,933.20

Finding the Fourth Proportional to 472,393,942.80, 708,590,914.20 and 288,727,933.20

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Solution

The fourth proportional to 472,393,942.80, 708,590,914.20 and 288,727,933.20 is: 433,091,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,942.80 : 708,590,914.20 = 288,727,933.20 : x
  2. Step 2: Convert to fraction form
    472,393,942.80/708,590,914.20 = 288,727,933.20/x
  3. Step 3: Cross multiply
    472,393,942.80x = 708,590,914.20 × 288,727,933.20
  4. Step 4: Simplify right side
    472,393,942.80x = 204,589,990,141,264,544
  5. Step 5: Solve for x
    x = 204,589,990,141,264,544/472,393,942.80
  6. Step 6: Final answer
    x = 433,091,899.80

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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.