Home / 1,296,841,508.65-1,789,619,917.86-702,121,238.29

Finding the Fourth Proportional to 1,296,841,508.65, 1,789,619,917.86 and 702,121,238.29

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Solution

The fourth proportional to 1,296,841,508.65, 1,789,619,917.86 and 702,121,238.29 is: 968,915,742.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,841,508.65 : 1,789,619,917.86 = 702,121,238.29 : x
  2. Step 2: Convert to fraction form
    1,296,841,508.65/1,789,619,917.86 = 702,121,238.29/x
  3. Step 3: Cross multiply
    1,296,841,508.65x = 1,789,619,917.86 × 702,121,238.29
  4. Step 4: Simplify right side
    1,296,841,508.65x = 1,256,530,152,788,508,416
  5. Step 5: Solve for x
    x = 1,256,530,152,788,508,416/1,296,841,508.65
  6. Step 6: Final answer
    x = 968,915,742.14

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Half scale
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Double scale
Find fourth proportional to 1,296,841,509.65, 1,789,619,919.24 and 702,121,239.29
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.