Home / 78,340,621.32-108,111,181.68-43,061,693.94

Finding the Fourth Proportional to 78,340,621.32, 108,111,181.68 and 43,061,693.94

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Solution

The fourth proportional to 78,340,621.32, 108,111,181.68 and 43,061,693.94 is: 59,425,755.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,340,621.32 : 108,111,181.68 = 43,061,693.94 : x
  2. Step 2: Convert to fraction form
    78,340,621.32/108,111,181.68 = 43,061,693.94/x
  3. Step 3: Cross multiply
    78,340,621.32x = 108,111,181.68 × 43,061,693.94
  4. Step 4: Simplify right side
    78,340,621.32x = 4,655,450,616,995,895
  5. Step 5: Solve for x
    x = 4,655,450,616,995,895/78,340,621.32
  6. Step 6: Final answer
    x = 59,425,755.61

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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.