Home / 68,638,175.79-94,697,637.41-38,864,755.55

Finding the Fourth Proportional to 68,638,175.79, 94,697,637.41 and 38,864,755.55

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Solution

The fourth proportional to 68,638,175.79, 94,697,637.41 and 38,864,755.55 is: 53,620,313.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,638,175.79 : 94,697,637.41 = 38,864,755.55 : x
  2. Step 2: Convert to fraction form
    68,638,175.79/94,697,637.41 = 38,864,755.55/x
  3. Step 3: Cross multiply
    68,638,175.79x = 94,697,637.41 × 38,864,755.55
  4. Step 4: Simplify right side
    68,638,175.79x = 3,680,400,528,794,129
  5. Step 5: Solve for x
    x = 3,680,400,528,794,129/68,638,175.79
  6. Step 6: Final answer
    x = 53,620,313.87

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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.