Home / 419,914,868.40-629,872,302.60-361,464,231.60

Finding the Fourth Proportional to 419,914,868.40, 629,872,302.60 and 361,464,231.60

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Solution

The fourth proportional to 419,914,868.40, 629,872,302.60 and 361,464,231.60 is: 542,196,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,914,868.40 : 629,872,302.60 = 361,464,231.60 : x
  2. Step 2: Convert to fraction form
    419,914,868.40/629,872,302.60 = 361,464,231.60/x
  3. Step 3: Cross multiply
    419,914,868.40x = 629,872,302.60 × 361,464,231.60
  4. Step 4: Simplify right side
    419,914,868.40x = 227,676,307,865,431,712
  5. Step 5: Solve for x
    x = 227,676,307,865,431,712/419,914,868.40
  6. Step 6: Final answer
    x = 542,196,347.40

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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.