Home / 109,116,780.68-150,778,129.54-77,700,287.14

Finding the Fourth Proportional to 109,116,780.68, 150,778,129.54 and 77,700,287.14

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Solution

The fourth proportional to 109,116,780.68, 150,778,129.54 and 77,700,287.14 is: 107,366,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,116,780.68 : 150,778,129.54 = 77,700,287.14 : x
  2. Step 2: Convert to fraction form
    109,116,780.68/150,778,129.54 = 77,700,287.14/x
  3. Step 3: Cross multiply
    109,116,780.68x = 150,778,129.54 × 77,700,287.14
  4. Step 4: Simplify right side
    109,116,780.68x = 11,715,503,958,936,226
  5. Step 5: Solve for x
    x = 11,715,503,958,936,226/109,116,780.68
  6. Step 6: Final answer
    x = 107,366,656.95

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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.