Home / 1,008,651,199.20-1,512,976,798.80-969,909,150.30

Finding the Fourth Proportional to 1,008,651,199.20, 1,512,976,798.80 and 969,909,150.30

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Solution

The fourth proportional to 1,008,651,199.20, 1,512,976,798.80 and 969,909,150.30 is: 1,454,863,725.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,651,199.20 : 1,512,976,798.80 = 969,909,150.30 : x
  2. Step 2: Convert to fraction form
    1,008,651,199.20/1,512,976,798.80 = 969,909,150.30/x
  3. Step 3: Cross multiply
    1,008,651,199.20x = 1,512,976,798.80 × 969,909,150.30
  4. Step 4: Simplify right side
    1,008,651,199.20x = 1,467,450,041,347,721,984
  5. Step 5: Solve for x
    x = 1,467,450,041,347,721,984/1,008,651,199.20
  6. Step 6: Final answer
    x = 1,454,863,725.45

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Half scale
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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.