Home / 419,904,846.90-629,857,270.35-288,390,914.10

Finding the Fourth Proportional to 419,904,846.90, 629,857,270.35 and 288,390,914.10

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Solution

The fourth proportional to 419,904,846.90, 629,857,270.35 and 288,390,914.10 is: 432,586,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,846.90 : 629,857,270.35 = 288,390,914.10 : x
  2. Step 2: Convert to fraction form
    419,904,846.90/629,857,270.35 = 288,390,914.10/x
  3. Step 3: Cross multiply
    419,904,846.90x = 629,857,270.35 × 288,390,914.10
  4. Step 4: Simplify right side
    419,904,846.90x = 181,645,113,948,767,360
  5. Step 5: Solve for x
    x = 181,645,113,948,767,360/419,904,846.90
  6. Step 6: Final answer
    x = 432,586,371.15

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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.