Home / 1,008,126,037.40-1,512,189,056.10-900,987,531.80

Finding the Fourth Proportional to 1,008,126,037.40, 1,512,189,056.10 and 900,987,531.80

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Solution

The fourth proportional to 1,008,126,037.40, 1,512,189,056.10 and 900,987,531.80 is: 1,351,481,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,126,037.40 : 1,512,189,056.10 = 900,987,531.80 : x
  2. Step 2: Convert to fraction form
    1,008,126,037.40/1,512,189,056.10 = 900,987,531.80/x
  3. Step 3: Cross multiply
    1,008,126,037.40x = 1,512,189,056.10 × 900,987,531.80
  4. Step 4: Simplify right side
    1,008,126,037.40x = 1,362,463,485,270,510,592
  5. Step 5: Solve for x
    x = 1,362,463,485,270,510,592/1,008,126,037.40
  6. Step 6: Final answer
    x = 1,351,481,297.70

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Double scale
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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.