Home / 30,519,888.08-42,107,029.08-18,913,216.64

Finding the Fourth Proportional to 30,519,888.08, 42,107,029.08 and 18,913,216.64

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Solution

The fourth proportional to 30,519,888.08, 42,107,029.08 and 18,913,216.64 is: 26,093,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519,888.08 : 42,107,029.08 = 18,913,216.64 : x
  2. Step 2: Convert to fraction form
    30,519,888.08/42,107,029.08 = 18,913,216.64/x
  3. Step 3: Cross multiply
    30,519,888.08x = 42,107,029.08 × 18,913,216.64
  4. Step 4: Simplify right side
    30,519,888.08x = 796,379,363,056,819.88
  5. Step 5: Solve for x
    x = 796,379,363,056,819.88/30,519,888.08
  6. Step 6: Final answer
    x = 26,093,783.86

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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.