Home / 393,403,424.32-590,097,034.38-131,107,019.90

Finding the Fourth Proportional to 393,403,424.32, 590,097,034.38 and 131,107,019.90

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Solution

The fourth proportional to 393,403,424.32, 590,097,034.38 and 131,107,019.90 is: 196,657,829.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,403,424.32 : 590,097,034.38 = 131,107,019.90 : x
  2. Step 2: Convert to fraction form
    393,403,424.32/590,097,034.38 = 131,107,019.90/x
  3. Step 3: Cross multiply
    393,403,424.32x = 590,097,034.38 × 131,107,019.90
  4. Step 4: Simplify right side
    393,403,424.32x = 77,365,863,629,389,648
  5. Step 5: Solve for x
    x = 77,365,863,629,389,648/393,403,424.32
  6. Step 6: Final answer
    x = 196,657,829.72

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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.