Home / 1,305,219,986.29-1,801,203,775.39-710,508,985.39

Finding the Fourth Proportional to 1,305,219,986.29, 1,801,203,775.39 and 710,508,985.39

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Solution

The fourth proportional to 1,305,219,986.29, 1,801,203,775.39 and 710,508,985.39 is: 980,502,505.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,219,986.29 : 1,801,203,775.39 = 710,508,985.39 : x
  2. Step 2: Convert to fraction form
    1,305,219,986.29/1,801,203,775.39 = 710,508,985.39/x
  3. Step 3: Cross multiply
    1,305,219,986.29x = 1,801,203,775.39 × 710,508,985.39
  4. Step 4: Simplify right side
    1,305,219,986.29x = 1,279,771,466,932,129,792
  5. Step 5: Solve for x
    x = 1,279,771,466,932,129,792/1,305,219,986.29
  6. Step 6: Final answer
    x = 980,502,505.61

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Half scale
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Double scale
Find fourth proportional to 1,305,219,987.29, 1,801,203,776.77 and 710,508,986.39
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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.