Home / 835,394,319.81-1,151,692,208.34-666,422,064.39

Finding the Fourth Proportional to 835,394,319.81, 1,151,692,208.34 and 666,422,064.39

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Solution

The fourth proportional to 835,394,319.81, 1,151,692,208.34 and 666,422,064.39 is: 918,743,497.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,394,319.81 : 1,151,692,208.34 = 666,422,064.39 : x
  2. Step 2: Convert to fraction form
    835,394,319.81/1,151,692,208.34 = 666,422,064.39/x
  3. Step 3: Cross multiply
    835,394,319.81x = 1,151,692,208.34 × 666,422,064.39
  4. Step 4: Simplify right side
    835,394,319.81x = 767,513,099,023,820,672
  5. Step 5: Solve for x
    x = 767,513,099,023,820,672/835,394,319.81
  6. Step 6: Final answer
    x = 918,743,497.32

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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.