Home / 19,319,121.90-28,979,675.10-4,942,313.64

Finding the Fourth Proportional to 19,319,121.90, 28,979,675.10 and 4,942,313.64

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Solution

The fourth proportional to 19,319,121.90, 28,979,675.10 and 4,942,313.64 is: 7,413,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319,121.90 : 28,979,675.10 = 4,942,313.64 : x
  2. Step 2: Convert to fraction form
    19,319,121.90/28,979,675.10 = 4,942,313.64/x
  3. Step 3: Cross multiply
    19,319,121.90x = 28,979,675.10 × 4,942,313.64
  4. Step 4: Simplify right side
    19,319,121.90x = 143,226,643,529,498.38
  5. Step 5: Solve for x
    x = 143,226,643,529,498.38/19,319,121.90
  6. Step 6: Final answer
    x = 7,413,724.30

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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.