Home / 393,403,426.32-590,097,037.38-131,107,021.90

Finding the Fourth Proportional to 393,403,426.32, 590,097,037.38 and 131,107,021.90

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Solution

The fourth proportional to 393,403,426.32, 590,097,037.38 and 131,107,021.90 is: 196,657,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,403,426.32 : 590,097,037.38 = 131,107,021.90 : x
  2. Step 2: Convert to fraction form
    393,403,426.32/590,097,037.38 = 131,107,021.90/x
  3. Step 3: Cross multiply
    393,403,426.32x = 590,097,037.38 × 131,107,021.90
  4. Step 4: Simplify right side
    393,403,426.32x = 77,365,865,202,904,784
  5. Step 5: Solve for x
    x = 77,365,865,202,904,784/393,403,426.32
  6. Step 6: Final answer
    x = 196,657,832.72

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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.