Home / 648,084,542-894,365,066.04-354,722,811.44

Finding the Fourth Proportional to 648,084,542, 894,365,066.04 and 354,722,811.44

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Solution

The fourth proportional to 648,084,542, 894,365,066.04 and 354,722,811.44 is: 489,522,076.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,084,542 : 894,365,066.04 = 354,722,811.44 : x
  2. Step 2: Convert to fraction form
    648,084,542/894,365,066.04 = 354,722,811.44/x
  3. Step 3: Cross multiply
    648,084,542x = 894,365,066.04 × 354,722,811.44
  4. Step 4: Simplify right side
    648,084,542x = 317,251,690,679,430,080
  5. Step 5: Solve for x
    x = 317,251,690,679,430,080/648,084,542
  6. Step 6: Final answer
    x = 489,522,076.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.