Home / 286,579,376.80-429,869,065.20-281,796,407.80

Finding the Fourth Proportional to 286,579,376.80, 429,869,065.20 and 281,796,407.80

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Solution

The fourth proportional to 286,579,376.80, 429,869,065.20 and 281,796,407.80 is: 422,694,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,579,376.80 : 429,869,065.20 = 281,796,407.80 : x
  2. Step 2: Convert to fraction form
    286,579,376.80/429,869,065.20 = 281,796,407.80/x
  3. Step 3: Cross multiply
    286,579,376.80x = 429,869,065.20 × 281,796,407.80
  4. Step 4: Simplify right side
    286,579,376.80x = 121,135,558,397,703,984
  5. Step 5: Solve for x
    x = 121,135,558,397,703,984/286,579,376.80
  6. Step 6: Final answer
    x = 422,694,611.70

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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.