Home / 1,200,560,111.36-1,800,516,184.86-424,103,552.72

Finding the Fourth Proportional to 1,200,560,111.36, 1,800,516,184.86 and 424,103,552.72

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Solution

The fourth proportional to 1,200,560,111.36, 1,800,516,184.86 and 424,103,552.72 is: 636,040,880.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,560,111.36 : 1,800,516,184.86 = 424,103,552.72 : x
  2. Step 2: Convert to fraction form
    1,200,560,111.36/1,800,516,184.86 = 424,103,552.72/x
  3. Step 3: Cross multiply
    1,200,560,111.36x = 1,800,516,184.86 × 424,103,552.72
  4. Step 4: Simplify right side
    1,200,560,111.36x = 763,605,310,728,986,240
  5. Step 5: Solve for x
    x = 763,605,310,728,986,240/1,200,560,111.36
  6. Step 6: Final answer
    x = 636,040,880.84

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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.