Home / 1,379,187,716.70-2,068,776,131.85-409,839,332.70

Finding the Fourth Proportional to 1,379,187,716.70, 2,068,776,131.85 and 409,839,332.70

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Solution

The fourth proportional to 1,379,187,716.70, 2,068,776,131.85 and 409,839,332.70 is: 614,757,381.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,187,716.70 : 2,068,776,131.85 = 409,839,332.70 : x
  2. Step 2: Convert to fraction form
    1,379,187,716.70/2,068,776,131.85 = 409,839,332.70/x
  3. Step 3: Cross multiply
    1,379,187,716.70x = 2,068,776,131.85 × 409,839,332.70
  4. Step 4: Simplify right side
    1,379,187,716.70x = 847,865,829,383,091,200
  5. Step 5: Solve for x
    x = 847,865,829,383,091,200/1,379,187,716.70
  6. Step 6: Final answer
    x = 614,757,381.55

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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.