Home / 155,052,548.37-213,977,081.03-85,442,413.41

Finding the Fourth Proportional to 155,052,548.37, 213,977,081.03 and 85,442,413.41

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Solution

The fourth proportional to 155,052,548.37, 213,977,081.03 and 85,442,413.41 is: 117,913,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,052,548.37 : 213,977,081.03 = 85,442,413.41 : x
  2. Step 2: Convert to fraction form
    155,052,548.37/213,977,081.03 = 85,442,413.41/x
  3. Step 3: Cross multiply
    155,052,548.37x = 213,977,081.03 × 85,442,413.41
  4. Step 4: Simplify right side
    155,052,548.37x = 18,282,718,217,203,116
  5. Step 5: Solve for x
    x = 18,282,718,217,203,116/155,052,548.37
  6. Step 6: Final answer
    x = 117,913,045.67

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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.