Home / 278,102,712.51-383,782,163.67-150,943,436.40

Finding the Fourth Proportional to 278,102,712.51, 383,782,163.67 and 150,943,436.40

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Solution

The fourth proportional to 278,102,712.51, 383,782,163.67 and 150,943,436.40 is: 208,302,170.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,102,712.51 : 383,782,163.67 = 150,943,436.40 : x
  2. Step 2: Convert to fraction form
    278,102,712.51/383,782,163.67 = 150,943,436.40/x
  3. Step 3: Cross multiply
    278,102,712.51x = 383,782,163.67 × 150,943,436.40
  4. Step 4: Simplify right side
    278,102,712.51x = 57,929,398,613,377,040
  5. Step 5: Solve for x
    x = 57,929,398,613,377,040/278,102,712.51
  6. Step 6: Final answer
    x = 208,302,170.41

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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.