Home / 551,185,390.80-826,778,086.20-517,173,166.80

Finding the Fourth Proportional to 551,185,390.80, 826,778,086.20 and 517,173,166.80

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Solution

The fourth proportional to 551,185,390.80, 826,778,086.20 and 517,173,166.80 is: 775,759,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,185,390.80 : 826,778,086.20 = 517,173,166.80 : x
  2. Step 2: Convert to fraction form
    551,185,390.80/826,778,086.20 = 517,173,166.80/x
  3. Step 3: Cross multiply
    551,185,390.80x = 826,778,086.20 × 517,173,166.80
  4. Step 4: Simplify right side
    551,185,390.80x = 427,587,441,080,897,408
  5. Step 5: Solve for x
    x = 427,587,441,080,897,408/551,185,390.80
  6. Step 6: Final answer
    x = 775,759,750.20

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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.