Home / 1,022,979,007.20-1,533,460,741.20-505,489,317.60

Finding the Fourth Proportional to 1,022,979,007.20, 1,533,460,741.20 and 505,489,317.60

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Solution

The fourth proportional to 1,022,979,007.20, 1,533,460,741.20 and 505,489,317.60 is: 757,736,002.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,979,007.20 : 1,533,460,741.20 = 505,489,317.60 : x
  2. Step 2: Convert to fraction form
    1,022,979,007.20/1,533,460,741.20 = 505,489,317.60/x
  3. Step 3: Cross multiply
    1,022,979,007.20x = 1,533,460,741.20 × 505,489,317.60
  4. Step 4: Simplify right side
    1,022,979,007.20x = 775,148,023,635,578,240
  5. Step 5: Solve for x
    x = 775,148,023,635,578,240/1,022,979,007.20
  6. Step 6: Final answer
    x = 757,736,002.58

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Half scale
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Double scale
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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.