Home / 61,238,826.20-91,732,268.10-42,091,203.80

Finding the Fourth Proportional to 61,238,826.20, 91,732,268.10 and 42,091,203.80

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Solution

The fourth proportional to 61,238,826.20, 91,732,268.10 and 42,091,203.80 is: 63,050,222.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,238,826.20 : 91,732,268.10 = 42,091,203.80 : x
  2. Step 2: Convert to fraction form
    61,238,826.20/91,732,268.10 = 42,091,203.80/x
  3. Step 3: Cross multiply
    61,238,826.20x = 91,732,268.10 × 42,091,203.80
  4. Step 4: Simplify right side
    61,238,826.20x = 3,861,121,591,633,338.50
  5. Step 5: Solve for x
    x = 3,861,121,591,633,338.50/61,238,826.20
  6. Step 6: Final answer
    x = 63,050,222.08

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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.