Home / 103,485,006.70-155,335,176.11-76,222,083.40

Finding the Fourth Proportional to 103,485,006.70, 155,335,176.11 and 76,222,083.40

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Solution

The fourth proportional to 103,485,006.70, 155,335,176.11 and 76,222,083.40 is: 114,412,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,485,006.70 : 155,335,176.11 = 76,222,083.40 : x
  2. Step 2: Convert to fraction form
    103,485,006.70/155,335,176.11 = 76,222,083.40/x
  3. Step 3: Cross multiply
    103,485,006.70x = 155,335,176.11 × 76,222,083.40
  4. Step 4: Simplify right side
    103,485,006.70x = 11,839,970,748,410,110
  5. Step 5: Solve for x
    x = 11,839,970,748,410,110/103,485,006.70
  6. Step 6: Final answer
    x = 114,412,426.75

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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.