Home / 393,403,413.48-590,097,018.24-131,107,009.11

Finding the Fourth Proportional to 393,403,413.48, 590,097,018.24 and 131,107,009.11

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Solution

The fourth proportional to 393,403,413.48, 590,097,018.24 and 131,107,009.11 is: 196,657,813.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,403,413.48 : 590,097,018.24 = 131,107,009.11 : x
  2. Step 2: Convert to fraction form
    393,403,413.48/590,097,018.24 = 131,107,009.11/x
  3. Step 3: Cross multiply
    393,403,413.48x = 590,097,018.24 × 131,107,009.11
  4. Step 4: Simplify right side
    393,403,413.48x = 77,365,855,146,175,520
  5. Step 5: Solve for x
    x = 77,365,855,146,175,520/393,403,413.48
  6. Step 6: Final answer
    x = 196,657,813.57

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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.