Home / 13,839,578.90-19,098,542.83-7,645,051.76

Finding the Fourth Proportional to 13,839,578.90, 19,098,542.83 and 7,645,051.76

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Solution

The fourth proportional to 13,839,578.90, 19,098,542.83 and 7,645,051.76 is: 10,550,129.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839,578.90 : 19,098,542.83 = 7,645,051.76 : x
  2. Step 2: Convert to fraction form
    13,839,578.90/19,098,542.83 = 7,645,051.76/x
  3. Step 3: Cross multiply
    13,839,578.90x = 19,098,542.83 × 7,645,051.76
  4. Step 4: Simplify right side
    13,839,578.90x = 146,009,348,375,656
  5. Step 5: Solve for x
    x = 146,009,348,375,656/13,839,578.90
  6. Step 6: Final answer
    x = 10,550,129.41

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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.