Home / 885,358,247.87-1,221,902,104.37-514,080,268.31

Finding the Fourth Proportional to 885,358,247.87, 1,221,902,104.37 and 514,080,268.31

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Solution

The fourth proportional to 885,358,247.87, 1,221,902,104.37 and 514,080,268.31 is: 709,493,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,358,247.87 : 1,221,902,104.37 = 514,080,268.31 : x
  2. Step 2: Convert to fraction form
    885,358,247.87/1,221,902,104.37 = 514,080,268.31/x
  3. Step 3: Cross multiply
    885,358,247.87x = 1,221,902,104.37 × 514,080,268.31
  4. Step 4: Simplify right side
    885,358,247.87x = 628,155,761,654,403,328
  5. Step 5: Solve for x
    x = 628,155,761,654,403,328/885,358,247.87
  6. Step 6: Final answer
    x = 709,493,318.86

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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.