Home / 90,538,190.88-124,942,718.88-49,285,396.32

Finding the Fourth Proportional to 90,538,190.88, 124,942,718.88 and 49,285,396.32

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Solution

The fourth proportional to 90,538,190.88, 124,942,718.88 and 49,285,396.32 is: 68,013,855.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,538,190.88 : 124,942,718.88 = 49,285,396.32 : x
  2. Step 2: Convert to fraction form
    90,538,190.88/124,942,718.88 = 49,285,396.32/x
  3. Step 3: Cross multiply
    90,538,190.88x = 124,942,718.88 × 49,285,396.32
  4. Step 4: Simplify right side
    90,538,190.88x = 6,157,851,417,299,146
  5. Step 5: Solve for x
    x = 6,157,851,417,299,146/90,538,190.88
  6. Step 6: Final answer
    x = 68,013,855.34

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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.