Home / 419,905,210.40-629,857,815.60-328,072,205.60

Finding the Fourth Proportional to 419,905,210.40, 629,857,815.60 and 328,072,205.60

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Solution

The fourth proportional to 419,905,210.40, 629,857,815.60 and 328,072,205.60 is: 492,108,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,210.40 : 629,857,815.60 = 328,072,205.60 : x
  2. Step 2: Convert to fraction form
    419,905,210.40/629,857,815.60 = 328,072,205.60/x
  3. Step 3: Cross multiply
    419,905,210.40x = 629,857,815.60 × 328,072,205.60
  4. Step 4: Simplify right side
    419,905,210.40x = 206,638,842,778,290,112
  5. Step 5: Solve for x
    x = 206,638,842,778,290,112/419,905,210.40
  6. Step 6: Final answer
    x = 492,108,308.40

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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.