Home / 100,113,035.40-150,169,553.10-72,690,679.80

Finding the Fourth Proportional to 100,113,035.40, 150,169,553.10 and 72,690,679.80

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Solution

The fourth proportional to 100,113,035.40, 150,169,553.10 and 72,690,679.80 is: 109,036,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,113,035.40 : 150,169,553.10 = 72,690,679.80 : x
  2. Step 2: Convert to fraction form
    100,113,035.40/150,169,553.10 = 72,690,679.80/x
  3. Step 3: Cross multiply
    100,113,035.40x = 150,169,553.10 × 72,690,679.80
  4. Step 4: Simplify right side
    100,113,035.40x = 10,915,926,900,101,196
  5. Step 5: Solve for x
    x = 10,915,926,900,101,196/100,113,035.40
  6. Step 6: Final answer
    x = 109,036,019.70

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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.