Home / 878,174,985.12-1,317,289,771.44-325,614,913.44

Finding the Fourth Proportional to 878,174,985.12, 1,317,289,771.44 and 325,614,913.44

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Solution

The fourth proportional to 878,174,985.12, 1,317,289,771.44 and 325,614,913.44 is: 488,432,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,174,985.12 : 1,317,289,771.44 = 325,614,913.44 : x
  2. Step 2: Convert to fraction form
    878,174,985.12/1,317,289,771.44 = 325,614,913.44/x
  3. Step 3: Cross multiply
    878,174,985.12x = 1,317,289,771.44 × 325,614,913.44
  4. Step 4: Simplify right side
    878,174,985.12x = 428,929,194,902,833,024
  5. Step 5: Solve for x
    x = 428,929,194,902,833,024/878,174,985.12
  6. Step 6: Final answer
    x = 488,432,490.30

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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.