Home / 77,708,108.57-107,236,634.60-42,425,912.57

Finding the Fourth Proportional to 77,708,108.57, 107,236,634.60 and 42,425,912.57

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Solution

The fourth proportional to 77,708,108.57, 107,236,634.60 and 42,425,912.57 is: 58,547,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,708,108.57 : 107,236,634.60 = 42,425,912.57 : x
  2. Step 2: Convert to fraction form
    77,708,108.57/107,236,634.60 = 42,425,912.57/x
  3. Step 3: Cross multiply
    77,708,108.57x = 107,236,634.60 × 42,425,912.57
  4. Step 4: Simplify right side
    77,708,108.57x = 4,549,612,083,410,519
  5. Step 5: Solve for x
    x = 4,549,612,083,410,519/77,708,108.57
  6. Step 6: Final answer
    x = 58,547,456.21

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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.