Home / 839,811,037.20-1,259,716,555.80-431,664,349.20

Finding the Fourth Proportional to 839,811,037.20, 1,259,716,555.80 and 431,664,349.20

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Solution

The fourth proportional to 839,811,037.20, 1,259,716,555.80 and 431,664,349.20 is: 647,496,523.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,811,037.20 : 1,259,716,555.80 = 431,664,349.20 : x
  2. Step 2: Convert to fraction form
    839,811,037.20/1,259,716,555.80 = 431,664,349.20/x
  3. Step 3: Cross multiply
    839,811,037.20x = 1,259,716,555.80 × 431,664,349.20
  4. Step 4: Simplify right side
    839,811,037.20x = 543,774,727,235,872,448
  5. Step 5: Solve for x
    x = 543,774,727,235,872,448/839,811,037.20
  6. Step 6: Final answer
    x = 647,496,523.80

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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.