Home / 155,408,843.11-214,458,581.19-85,792,729.18

Finding the Fourth Proportional to 155,408,843.11, 214,458,581.19 and 85,792,729.18

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Solution

The fourth proportional to 155,408,843.11, 214,458,581.19 and 85,792,729.18 is: 118,390,862.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,408,843.11 : 214,458,581.19 = 85,792,729.18 : x
  2. Step 2: Convert to fraction form
    155,408,843.11/214,458,581.19 = 85,792,729.18/x
  3. Step 3: Cross multiply
    155,408,843.11x = 214,458,581.19 × 85,792,729.18
  4. Step 4: Simplify right side
    155,408,843.11x = 18,398,986,976,360,712
  5. Step 5: Solve for x
    x = 18,398,986,976,360,712/155,408,843.11
  6. Step 6: Final answer
    x = 118,390,862.50

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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.