Home / 551,440,619.20-826,310,623.20-478,314,337.60

Finding the Fourth Proportional to 551,440,619.20, 826,310,623.20 and 478,314,337.60

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Solution

The fourth proportional to 551,440,619.20, 826,310,623.20 and 478,314,337.60 is: 716,733,959.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,440,619.20 : 826,310,623.20 = 478,314,337.60 : x
  2. Step 2: Convert to fraction form
    551,440,619.20/826,310,623.20 = 478,314,337.60/x
  3. Step 3: Cross multiply
    551,440,619.20x = 826,310,623.20 × 478,314,337.60
  4. Step 4: Simplify right side
    551,440,619.20x = 395,236,218,387,751,232
  5. Step 5: Solve for x
    x = 395,236,218,387,751,232/551,440,619.20
  6. Step 6: Final answer
    x = 716,733,959.43

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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.