Home / 1,585,221,781.26-2,187,475,814.27-870,720,409.37

Finding the Fourth Proportional to 1,585,221,781.26, 2,187,475,814.27 and 870,720,409.37

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Solution

The fourth proportional to 1,585,221,781.26, 2,187,475,814.27 and 870,720,409.37 is: 1,201,522,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,221,781.26 : 2,187,475,814.27 = 870,720,409.37 : x
  2. Step 2: Convert to fraction form
    1,585,221,781.26/2,187,475,814.27 = 870,720,409.37/x
  3. Step 3: Cross multiply
    1,585,221,781.26x = 2,187,475,814.27 × 870,720,409.37
  4. Step 4: Simplify right side
    1,585,221,781.26x = 1,904,679,836,472,857,344
  5. Step 5: Solve for x
    x = 1,904,679,836,472,857,344/1,585,221,781.26
  6. Step 6: Final answer
    x = 1,201,522,625.41

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Double scale
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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.