Home / 208,490,066.44-312,821,836.08-91,845,721.60

Finding the Fourth Proportional to 208,490,066.44, 312,821,836.08 and 91,845,721.60

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Solution

The fourth proportional to 208,490,066.44, 312,821,836.08 and 91,845,721.60 is: 137,806,792.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,490,066.44 : 312,821,836.08 = 91,845,721.60 : x
  2. Step 2: Convert to fraction form
    208,490,066.44/312,821,836.08 = 91,845,721.60/x
  3. Step 3: Cross multiply
    208,490,066.44x = 312,821,836.08 × 91,845,721.60
  4. Step 4: Simplify right side
    208,490,066.44x = 28,731,347,265,878,040
  5. Step 5: Solve for x
    x = 28,731,347,265,878,040/208,490,066.44
  6. Step 6: Final answer
    x = 137,806,792.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.