Home / 147,518,331.21-203,569,964.57-81,437,413.38

Finding the Fourth Proportional to 147,518,331.21, 203,569,964.57 and 81,437,413.38

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Solution

The fourth proportional to 147,518,331.21, 203,569,964.57 and 81,437,413.38 is: 112,380,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,518,331.21 : 203,569,964.57 = 81,437,413.38 : x
  2. Step 2: Convert to fraction form
    147,518,331.21/203,569,964.57 = 81,437,413.38/x
  3. Step 3: Cross multiply
    147,518,331.21x = 203,569,964.57 × 81,437,413.38
  4. Step 4: Simplify right side
    147,518,331.21x = 16,578,211,355,879,250
  5. Step 5: Solve for x
    x = 16,578,211,355,879,250/147,518,331.21
  6. Step 6: Final answer
    x = 112,380,686.66

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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.