Home / 109,156,712.95-163,735,069.43-80,458,898.95

Finding the Fourth Proportional to 109,156,712.95, 163,735,069.43 and 80,458,898.95

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Solution

The fourth proportional to 109,156,712.95, 163,735,069.43 and 80,458,898.95 is: 120,688,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,156,712.95 : 163,735,069.43 = 80,458,898.95 : x
  2. Step 2: Convert to fraction form
    109,156,712.95/163,735,069.43 = 80,458,898.95/x
  3. Step 3: Cross multiply
    109,156,712.95x = 163,735,069.43 × 80,458,898.95
  4. Step 4: Simplify right side
    109,156,712.95x = 13,173,943,405,839,606
  5. Step 5: Solve for x
    x = 13,173,943,405,839,606/109,156,712.95
  6. Step 6: Final answer
    x = 120,688,348.43

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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.