Home / 109,156,718.95-163,735,078.43-80,458,904.95

Finding the Fourth Proportional to 109,156,718.95, 163,735,078.43 and 80,458,904.95

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Solution

The fourth proportional to 109,156,718.95, 163,735,078.43 and 80,458,904.95 is: 120,688,357.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,156,718.95 : 163,735,078.43 = 80,458,904.95 : x
  2. Step 2: Convert to fraction form
    109,156,718.95/163,735,078.43 = 80,458,904.95/x
  3. Step 3: Cross multiply
    109,156,718.95x = 163,735,078.43 × 80,458,904.95
  4. Step 4: Simplify right side
    109,156,718.95x = 13,173,945,112,380,166
  5. Step 5: Solve for x
    x = 13,173,945,112,380,166/109,156,718.95
  6. Step 6: Final answer
    x = 120,688,357.43

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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.