Home / 516,781,771.74-774,860,431.53-205,937,208.54

Finding the Fourth Proportional to 516,781,771.74, 774,860,431.53 and 205,937,208.54

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Solution

The fourth proportional to 516,781,771.74, 774,860,431.53 and 205,937,208.54 is: 308,781,390.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,781,771.74 : 774,860,431.53 = 205,937,208.54 : x
  2. Step 2: Convert to fraction form
    516,781,771.74/774,860,431.53 = 205,937,208.54/x
  3. Step 3: Cross multiply
    516,781,771.74x = 774,860,431.53 × 205,937,208.54
  4. Step 4: Simplify right side
    516,781,771.74x = 159,572,594,277,388,000
  5. Step 5: Solve for x
    x = 159,572,594,277,388,000/516,781,771.74
  6. Step 6: Final answer
    x = 308,781,390.91

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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.