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Finding the Fourth Proportional to 111,888,501.30, 167,832,751.95 and 81,655,413.30

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Solution

The fourth proportional to 111,888,501.30, 167,832,751.95 and 81,655,413.30 is: 122,483,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,888,501.30 : 167,832,751.95 = 81,655,413.30 : x
  2. Step 2: Convert to fraction form
    111,888,501.30/167,832,751.95 = 81,655,413.30/x
  3. Step 3: Cross multiply
    111,888,501.30x = 167,832,751.95 × 81,655,413.30
  4. Step 4: Simplify right side
    111,888,501.30x = 13,704,452,725,753,630
  5. Step 5: Solve for x
    x = 13,704,452,725,753,630/111,888,501.30
  6. Step 6: Final answer
    x = 122,483,119.95

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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.