Home / 90,410,936-124,766,212.02-49,157,828.24

Finding the Fourth Proportional to 90,410,936, 124,766,212.02 and 49,157,828.24

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Solution

The fourth proportional to 90,410,936, 124,766,212.02 and 49,157,828.24 is: 67,837,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,410,936 : 124,766,212.02 = 49,157,828.24 : x
  2. Step 2: Convert to fraction form
    90,410,936/124,766,212.02 = 49,157,828.24/x
  3. Step 3: Cross multiply
    90,410,936x = 124,766,212.02 × 49,157,828.24
  4. Step 4: Simplify right side
    90,410,936x = 6,133,236,020,634,583
  5. Step 5: Solve for x
    x = 6,133,236,020,634,583/90,410,936
  6. Step 6: Final answer
    x = 67,837,324.69

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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.