Home / 346,999,519.70-520,480,120.67-253,722,078.13

Finding the Fourth Proportional to 346,999,519.70, 520,480,120.67 and 253,722,078.13

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Solution

The fourth proportional to 346,999,519.70, 520,480,120.67 and 253,722,078.13 is: 380,569,108.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,999,519.70 : 520,480,120.67 = 253,722,078.13 : x
  2. Step 2: Convert to fraction form
    346,999,519.70/520,480,120.67 = 253,722,078.13/x
  3. Step 3: Cross multiply
    346,999,519.70x = 520,480,120.67 × 253,722,078.13
  4. Step 4: Simplify right side
    346,999,519.70x = 132,057,297,839,175,760
  5. Step 5: Solve for x
    x = 132,057,297,839,175,760/346,999,519.70
  6. Step 6: Final answer
    x = 380,569,108.43

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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.