Home / 42,768,045.05-64,152,067.58-20,051,238.65

Finding the Fourth Proportional to 42,768,045.05, 64,152,067.58 and 20,051,238.65

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Solution

The fourth proportional to 42,768,045.05, 64,152,067.58 and 20,051,238.65 is: 30,076,857.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,045.05 : 64,152,067.58 = 20,051,238.65 : x
  2. Step 2: Convert to fraction form
    42,768,045.05/64,152,067.58 = 20,051,238.65/x
  3. Step 3: Cross multiply
    42,768,045.05x = 64,152,067.58 × 20,051,238.65
  4. Step 4: Simplify right side
    42,768,045.05x = 1,286,328,416,837,251.75
  5. Step 5: Solve for x
    x = 1,286,328,416,837,251.75/42,768,045.05
  6. Step 6: Final answer
    x = 30,076,857.98

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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.