Home / 1,252,385,323.89-1,728,880,168.16-723,647,033.53

Finding the Fourth Proportional to 1,252,385,323.89, 1,728,880,168.16 and 723,647,033.53

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Solution

The fourth proportional to 1,252,385,323.89, 1,728,880,168.16 and 723,647,033.53 is: 998,972,904.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,385,323.89 : 1,728,880,168.16 = 723,647,033.53 : x
  2. Step 2: Convert to fraction form
    1,252,385,323.89/1,728,880,168.16 = 723,647,033.53/x
  3. Step 3: Cross multiply
    1,252,385,323.89x = 1,728,880,168.16 × 723,647,033.53
  4. Step 4: Simplify right side
    1,252,385,323.89x = 1,251,099,005,011,266,048
  5. Step 5: Solve for x
    x = 1,251,099,005,011,266,048/1,252,385,323.89
  6. Step 6: Final answer
    x = 998,972,904.86

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1.5x scale

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.