Home / 286,579,136.80-429,868,705.20-281,796,167.80

Finding the Fourth Proportional to 286,579,136.80, 429,868,705.20 and 281,796,167.80

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Solution

The fourth proportional to 286,579,136.80, 429,868,705.20 and 281,796,167.80 is: 422,694,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,579,136.80 : 429,868,705.20 = 281,796,167.80 : x
  2. Step 2: Convert to fraction form
    286,579,136.80/429,868,705.20 = 281,796,167.80/x
  3. Step 3: Cross multiply
    286,579,136.80x = 429,868,705.20 × 281,796,167.80
  4. Step 4: Simplify right side
    286,579,136.80x = 121,135,353,782,507,936
  5. Step 5: Solve for x
    x = 121,135,353,782,507,936/286,579,136.80
  6. Step 6: Final answer
    x = 422,694,251.70

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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.