Home / 286,579,141.80-429,868,712.70-281,796,172.80

Finding the Fourth Proportional to 286,579,141.80, 429,868,712.70 and 281,796,172.80

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Solution

The fourth proportional to 286,579,141.80, 429,868,712.70 and 281,796,172.80 is: 422,694,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,579,141.80 : 429,868,712.70 = 281,796,172.80 : x
  2. Step 2: Convert to fraction form
    286,579,141.80/429,868,712.70 = 281,796,172.80/x
  3. Step 3: Cross multiply
    286,579,141.80x = 429,868,712.70 × 281,796,172.80
  4. Step 4: Simplify right side
    286,579,141.80x = 121,135,358,045,322,752
  5. Step 5: Solve for x
    x = 121,135,358,045,322,752/286,579,141.80
  6. Step 6: Final answer
    x = 422,694,259.20

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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.