Home / 419,905,095.90-629,857,643.85-215,453,838.30

Finding the Fourth Proportional to 419,905,095.90, 629,857,643.85 and 215,453,838.30

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Solution

The fourth proportional to 419,905,095.90, 629,857,643.85 and 215,453,838.30 is: 323,180,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,095.90 : 629,857,643.85 = 215,453,838.30 : x
  2. Step 2: Convert to fraction form
    419,905,095.90/629,857,643.85 = 215,453,838.30/x
  3. Step 3: Cross multiply
    419,905,095.90x = 629,857,643.85 × 215,453,838.30
  4. Step 4: Simplify right side
    419,905,095.90x = 135,705,246,950,076,896
  5. Step 5: Solve for x
    x = 135,705,246,950,076,896/419,905,095.90
  6. Step 6: Final answer
    x = 323,180,757.45

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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.