Home / 68,731,881.66-103,097,785.23-20,210,137.38

Finding the Fourth Proportional to 68,731,881.66, 103,097,785.23 and 20,210,137.38

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Solution

The fourth proportional to 68,731,881.66, 103,097,785.23 and 20,210,137.38 is: 30,315,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,731,881.66 : 103,097,785.23 = 20,210,137.38 : x
  2. Step 2: Convert to fraction form
    68,731,881.66/103,097,785.23 = 20,210,137.38/x
  3. Step 3: Cross multiply
    68,731,881.66x = 103,097,785.23 × 20,210,137.38
  4. Step 4: Simplify right side
    68,731,881.66x = 2,083,620,403,072,034.75
  5. Step 5: Solve for x
    x = 2,083,620,403,072,034.75/68,731,881.66
  6. Step 6: Final answer
    x = 30,315,195.11

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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.