Home / 77,004,675-115,505,924.13-18,712,781.46

Finding the Fourth Proportional to 77,004,675, 115,505,924.13 and 18,712,781.46

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Solution

The fourth proportional to 77,004,675, 115,505,924.13 and 18,712,781.46 is: 28,068,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,004,675 : 115,505,924.13 = 18,712,781.46 : x
  2. Step 2: Convert to fraction form
    77,004,675/115,505,924.13 = 18,712,781.46/x
  3. Step 3: Cross multiply
    77,004,675x = 115,505,924.13 × 18,712,781.46
  4. Step 4: Simplify right side
    77,004,675x = 2,161,437,115,580,030.75
  5. Step 5: Solve for x
    x = 2,161,437,115,580,030.75/77,004,675
  6. Step 6: Final answer
    x = 28,068,907.71

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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.