Home / 419,914,809.40-629,872,214.10-361,464,172.60

Finding the Fourth Proportional to 419,914,809.40, 629,872,214.10 and 361,464,172.60

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Solution

The fourth proportional to 419,914,809.40, 629,872,214.10 and 361,464,172.60 is: 542,196,258.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,914,809.40 : 629,872,214.10 = 361,464,172.60 : x
  2. Step 2: Convert to fraction form
    419,914,809.40/629,872,214.10 = 361,464,172.60/x
  3. Step 3: Cross multiply
    419,914,809.40x = 629,872,214.10 × 361,464,172.60
  4. Step 4: Simplify right side
    419,914,809.40x = 227,676,238,713,386,592
  5. Step 5: Solve for x
    x = 227,676,238,713,386,592/419,914,809.40
  6. Step 6: Final answer
    x = 542,196,258.90

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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.