Home / 100,609,052.95-150,913,579.43-80,453,660.95

Finding the Fourth Proportional to 100,609,052.95, 150,913,579.43 and 80,453,660.95

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Solution

The fourth proportional to 100,609,052.95, 150,913,579.43 and 80,453,660.95 is: 120,680,491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,609,052.95 : 150,913,579.43 = 80,453,660.95 : x
  2. Step 2: Convert to fraction form
    100,609,052.95/150,913,579.43 = 80,453,660.95/x
  3. Step 3: Cross multiply
    100,609,052.95x = 150,913,579.43 × 80,453,660.95
  4. Step 4: Simplify right side
    100,609,052.95x = 12,141,549,952,212,116
  5. Step 5: Solve for x
    x = 12,141,549,952,212,116/100,609,052.95
  6. Step 6: Final answer
    x = 120,680,491.43

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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.