Home / 100,405,099.40-150,607,649.10-69,794,097.80

Finding the Fourth Proportional to 100,405,099.40, 150,607,649.10 and 69,794,097.80

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Solution

The fourth proportional to 100,405,099.40, 150,607,649.10 and 69,794,097.80 is: 104,691,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,405,099.40 : 150,607,649.10 = 69,794,097.80 : x
  2. Step 2: Convert to fraction form
    100,405,099.40/150,607,649.10 = 69,794,097.80/x
  3. Step 3: Cross multiply
    100,405,099.40x = 150,607,649.10 × 69,794,097.80
  4. Step 4: Simplify right side
    100,405,099.40x = 10,511,524,990,713,482
  5. Step 5: Solve for x
    x = 10,511,524,990,713,482/100,405,099.40
  6. Step 6: Final answer
    x = 104,691,146.70

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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.