Home / 80,928,093.80-121,392,140.70-71,574,732.20

Finding the Fourth Proportional to 80,928,093.80, 121,392,140.70 and 71,574,732.20

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Solution

The fourth proportional to 80,928,093.80, 121,392,140.70 and 71,574,732.20 is: 107,362,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,928,093.80 : 121,392,140.70 = 71,574,732.20 : x
  2. Step 2: Convert to fraction form
    80,928,093.80/121,392,140.70 = 71,574,732.20/x
  3. Step 3: Cross multiply
    80,928,093.80x = 121,392,140.70 × 71,574,732.20
  4. Step 4: Simplify right side
    80,928,093.80x = 8,688,609,961,787,221
  5. Step 5: Solve for x
    x = 8,688,609,961,787,221/80,928,093.80
  6. Step 6: Final answer
    x = 107,362,098.30

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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.