Home / 138,402,291.08-207,603,436.62-80,864,945.48

Finding the Fourth Proportional to 138,402,291.08, 207,603,436.62 and 80,864,945.48

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Solution

The fourth proportional to 138,402,291.08, 207,603,436.62 and 80,864,945.48 is: 121,297,418.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,402,291.08 : 207,603,436.62 = 80,864,945.48 : x
  2. Step 2: Convert to fraction form
    138,402,291.08/207,603,436.62 = 80,864,945.48/x
  3. Step 3: Cross multiply
    138,402,291.08x = 207,603,436.62 × 80,864,945.48
  4. Step 4: Simplify right side
    138,402,291.08x = 16,787,840,582,294,594
  5. Step 5: Solve for x
    x = 16,787,840,582,294,594/138,402,291.08
  6. Step 6: Final answer
    x = 121,297,418.21

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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.