Home / 155,408,840.11-214,458,577.05-85,792,726.18

Finding the Fourth Proportional to 155,408,840.11, 214,458,577.05 and 85,792,726.18

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Solution

The fourth proportional to 155,408,840.11, 214,458,577.05 and 85,792,726.18 is: 118,390,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,408,840.11 : 214,458,577.05 = 85,792,726.18 : x
  2. Step 2: Convert to fraction form
    155,408,840.11/214,458,577.05 = 85,792,726.18/x
  3. Step 3: Cross multiply
    155,408,840.11x = 214,458,577.05 × 85,792,726.18
  4. Step 4: Simplify right side
    155,408,840.11x = 18,398,985,977,803,084
  5. Step 5: Solve for x
    x = 18,398,985,977,803,084/155,408,840.11
  6. Step 6: Final answer
    x = 118,390,858.36

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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.