Home / 509,968,333.90-764,952,500.85-165,169,413.10

Finding the Fourth Proportional to 509,968,333.90, 764,952,500.85 and 165,169,413.10

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Solution

The fourth proportional to 509,968,333.90, 764,952,500.85 and 165,169,413.10 is: 247,754,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,968,333.90 : 764,952,500.85 = 165,169,413.10 : x
  2. Step 2: Convert to fraction form
    509,968,333.90/764,952,500.85 = 165,169,413.10/x
  3. Step 3: Cross multiply
    509,968,333.90x = 764,952,500.85 × 165,169,413.10
  4. Step 4: Simplify right side
    509,968,333.90x = 126,346,755,614,771,744
  5. Step 5: Solve for x
    x = 126,346,755,614,771,744/509,968,333.90
  6. Step 6: Final answer
    x = 247,754,119.65

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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.