Home / 826,685,383.82-1,140,825,326.69-455,407,415.19

Finding the Fourth Proportional to 826,685,383.82, 1,140,825,326.69 and 455,407,415.19

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Solution

The fourth proportional to 826,685,383.82, 1,140,825,326.69 and 455,407,415.19 is: 628,461,955.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,685,383.82 : 1,140,825,326.69 = 455,407,415.19 : x
  2. Step 2: Convert to fraction form
    826,685,383.82/1,140,825,326.69 = 455,407,415.19/x
  3. Step 3: Cross multiply
    826,685,383.82x = 1,140,825,326.69 × 455,407,415.19
  4. Step 4: Simplify right side
    826,685,383.82x = 519,540,313,208,903,168
  5. Step 5: Solve for x
    x = 519,540,313,208,903,168/826,685,383.82
  6. Step 6: Final answer
    x = 628,461,955.88

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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.