Home / 13,305,656,755.47-18,361,806,684.71-7,365,209,257.47

Finding the Fourth Proportional to 13,305,656,755.47, 18,361,806,684.71 and 7,365,209,257.47

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Solution

The fourth proportional to 13,305,656,755.47, 18,361,806,684.71 and 7,365,209,257.47 is: 10,163,988,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305,656,755.47 : 18,361,806,684.71 = 7,365,209,257.47 : x
  2. Step 2: Convert to fraction form
    13,305,656,755.47/18,361,806,684.71 = 7,365,209,257.47/x
  3. Step 3: Cross multiply
    13,305,656,755.47x = 18,361,806,684.71 × 7,365,209,257.47
  4. Step 4: Simplify right side
    13,305,656,755.47x = 135,238,548,578,063,810,560
  5. Step 5: Solve for x
    x = 135,238,548,578,063,810,560/13,305,656,755.47
  6. Step 6: Final answer
    x = 10,163,988,975.78

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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.