Home / 100,100,946.30-150,151,419.45-80,617,400.70

Finding the Fourth Proportional to 100,100,946.30, 150,151,419.45 and 80,617,400.70

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Solution

The fourth proportional to 100,100,946.30, 150,151,419.45 and 80,617,400.70 is: 120,926,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,100,946.30 : 150,151,419.45 = 80,617,400.70 : x
  2. Step 2: Convert to fraction form
    100,100,946.30/150,151,419.45 = 80,617,400.70/x
  3. Step 3: Cross multiply
    100,100,946.30x = 150,151,419.45 × 80,617,400.70
  4. Step 4: Simplify right side
    100,100,946.30x = 12,104,817,147,474,424
  5. Step 5: Solve for x
    x = 12,104,817,147,474,424/100,100,946.30
  6. Step 6: Final answer
    x = 120,926,101.05

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1.5x scale

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.