Home / 42,707,251.80-64,071,801.78-12,415,114.80

Finding the Fourth Proportional to 42,707,251.80, 64,071,801.78 and 12,415,114.80

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Solution

The fourth proportional to 42,707,251.80, 64,071,801.78 and 12,415,114.80 is: 18,625,847.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,707,251.80 : 64,071,801.78 = 12,415,114.80 : x
  2. Step 2: Convert to fraction form
    42,707,251.80/64,071,801.78 = 12,415,114.80/x
  3. Step 3: Cross multiply
    42,707,251.80x = 64,071,801.78 × 12,415,114.80
  4. Step 4: Simplify right side
    42,707,251.80x = 795,458,774,541,544.38
  5. Step 5: Solve for x
    x = 795,458,774,541,544.38/42,707,251.80
  6. Step 6: Final answer
    x = 18,625,847.86

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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.