Home / 109,886,989.20-164,688,766.20-84,200,674.20

Finding the Fourth Proportional to 109,886,989.20, 164,688,766.20 and 84,200,674.20

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Solution

The fourth proportional to 109,886,989.20, 164,688,766.20 and 84,200,674.20 is: 126,192,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,886,989.20 : 164,688,766.20 = 84,200,674.20 : x
  2. Step 2: Convert to fraction form
    109,886,989.20/164,688,766.20 = 84,200,674.20/x
  3. Step 3: Cross multiply
    109,886,989.20x = 164,688,766.20 × 84,200,674.20
  4. Step 4: Simplify right side
    109,886,989.20x = 13,866,905,147,206,172
  5. Step 5: Solve for x
    x = 13,866,905,147,206,172/109,886,989.20
  6. Step 6: Final answer
    x = 126,192,420.49

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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.