Home / 100,886,858.10-151,330,287.15-76,493,716.20

Finding the Fourth Proportional to 100,886,858.10, 151,330,287.15 and 76,493,716.20

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Solution

The fourth proportional to 100,886,858.10, 151,330,287.15 and 76,493,716.20 is: 114,740,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,886,858.10 : 151,330,287.15 = 76,493,716.20 : x
  2. Step 2: Convert to fraction form
    100,886,858.10/151,330,287.15 = 76,493,716.20/x
  3. Step 3: Cross multiply
    100,886,858.10x = 151,330,287.15 × 76,493,716.20
  4. Step 4: Simplify right side
    100,886,858.10x = 11,575,816,037,716,608
  5. Step 5: Solve for x
    x = 11,575,816,037,716,608/100,886,858.10
  6. Step 6: Final answer
    x = 114,740,574.30

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Similar ratio
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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.