Home / 835,394,319.31-1,151,692,207.65-666,422,063.89

Finding the Fourth Proportional to 835,394,319.31, 1,151,692,207.65 and 666,422,063.89

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Solution

The fourth proportional to 835,394,319.31, 1,151,692,207.65 and 666,422,063.89 is: 918,743,496.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,394,319.31 : 1,151,692,207.65 = 666,422,063.89 : x
  2. Step 2: Convert to fraction form
    835,394,319.31/1,151,692,207.65 = 666,422,063.89/x
  3. Step 3: Cross multiply
    835,394,319.31x = 1,151,692,207.65 × 666,422,063.89
  4. Step 4: Simplify right side
    835,394,319.31x = 767,513,097,988,143,488
  5. Step 5: Solve for x
    x = 767,513,097,988,143,488/835,394,319.31
  6. Step 6: Final answer
    x = 918,743,496.63

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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.