Home / 18,756,913.84-28,134,845.86-5,978,185.36

Finding the Fourth Proportional to 18,756,913.84, 28,134,845.86 and 5,978,185.36

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Solution

The fourth proportional to 18,756,913.84, 28,134,845.86 and 5,978,185.36 is: 8,967,110.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,913.84 : 28,134,845.86 = 5,978,185.36 : x
  2. Step 2: Convert to fraction form
    18,756,913.84/28,134,845.86 = 5,978,185.36/x
  3. Step 3: Cross multiply
    18,756,913.84x = 28,134,845.86 × 5,978,185.36
  4. Step 4: Simplify right side
    18,756,913.84x = 168,195,323,626,108.62
  5. Step 5: Solve for x
    x = 168,195,323,626,108.62/18,756,913.84
  6. Step 6: Final answer
    x = 8,967,110.74

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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.