Home / 869,017,603.74-1,198,950,811.83-492,633,839.58

Finding the Fourth Proportional to 869,017,603.74, 1,198,950,811.83 and 492,633,839.58

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Solution

The fourth proportional to 869,017,603.74, 1,198,950,811.83 and 492,633,839.58 is: 679,668,328.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,017,603.74 : 1,198,950,811.83 = 492,633,839.58 : x
  2. Step 2: Convert to fraction form
    869,017,603.74/1,198,950,811.83 = 492,633,839.58/x
  3. Step 3: Cross multiply
    869,017,603.74x = 1,198,950,811.83 × 492,633,839.58
  4. Step 4: Simplify right side
    869,017,603.74x = 590,643,741,899,370,880
  5. Step 5: Solve for x
    x = 590,643,741,899,370,880/869,017,603.74
  6. Step 6: Final answer
    x = 679,668,328.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.