Home / 68,721,985.92-103,157,668.80-27,809,584.32

Finding the Fourth Proportional to 68,721,985.92, 103,157,668.80 and 27,809,584.32

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Solution

The fourth proportional to 68,721,985.92, 103,157,668.80 and 27,809,584.32 is: 41,744,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,721,985.92 : 103,157,668.80 = 27,809,584.32 : x
  2. Step 2: Convert to fraction form
    68,721,985.92/103,157,668.80 = 27,809,584.32/x
  3. Step 3: Cross multiply
    68,721,985.92x = 103,157,668.80 × 27,809,584.32
  4. Step 4: Simplify right side
    68,721,985.92x = 2,868,771,888,748,233
  5. Step 5: Solve for x
    x = 2,868,771,888,748,233/68,721,985.92
  6. Step 6: Final answer
    x = 41,744,601.10

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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.