Home / 773,968,423.52-1,068,786,220.20-491,803,860.80

Finding the Fourth Proportional to 773,968,423.52, 1,068,786,220.20 and 491,803,860.80

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Solution

The fourth proportional to 773,968,423.52, 1,068,786,220.20 and 491,803,860.80 is: 679,140,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,968,423.52 : 1,068,786,220.20 = 491,803,860.80 : x
  2. Step 2: Convert to fraction form
    773,968,423.52/1,068,786,220.20 = 491,803,860.80/x
  3. Step 3: Cross multiply
    773,968,423.52x = 1,068,786,220.20 × 491,803,860.80
  4. Step 4: Simplify right side
    773,968,423.52x = 525,633,189,464,198,976
  5. Step 5: Solve for x
    x = 525,633,189,464,198,976/773,968,423.52
  6. Step 6: Final answer
    x = 679,140,354.43

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Double scale
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1.5x scale

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.