Home / 64,121,142.60-96,172,382.70-18,678,198.60

Finding the Fourth Proportional to 64,121,142.60, 96,172,382.70 and 18,678,198.60

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Solution

The fourth proportional to 64,121,142.60, 96,172,382.70 and 18,678,198.60 is: 28,014,579.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,121,142.60 : 96,172,382.70 = 18,678,198.60 : x
  2. Step 2: Convert to fraction form
    64,121,142.60/96,172,382.70 = 18,678,198.60/x
  3. Step 3: Cross multiply
    64,121,142.60x = 96,172,382.70 × 18,678,198.60
  4. Step 4: Simplify right side
    64,121,142.60x = 1,796,326,863,905,804.50
  5. Step 5: Solve for x
    x = 1,796,326,863,905,804.50/64,121,142.60
  6. Step 6: Final answer
    x = 28,014,579.76

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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.