Home / 19,319,187.90-28,979,774.13-4,942,379.64

Finding the Fourth Proportional to 19,319,187.90, 28,979,774.13 and 4,942,379.64

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Solution

The fourth proportional to 19,319,187.90, 28,979,774.13 and 4,942,379.64 is: 7,413,823.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319,187.90 : 28,979,774.13 = 4,942,379.64 : x
  2. Step 2: Convert to fraction form
    19,319,187.90/28,979,774.13 = 4,942,379.64/x
  3. Step 3: Cross multiply
    19,319,187.90x = 28,979,774.13 × 4,942,379.64
  4. Step 4: Simplify right side
    19,319,187.90x = 143,229,045,631,910.69
  5. Step 5: Solve for x
    x = 143,229,045,631,910.69/19,319,187.90
  6. Step 6: Final answer
    x = 7,413,823.31

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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.