Home / 28,662,667.91-42,990,782.16-7,916,055.45

Finding the Fourth Proportional to 28,662,667.91, 42,990,782.16 and 7,916,055.45

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Solution

The fourth proportional to 28,662,667.91, 42,990,782.16 and 7,916,055.45 is: 11,873,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662,667.91 : 42,990,782.16 = 7,916,055.45 : x
  2. Step 2: Convert to fraction form
    28,662,667.91/42,990,782.16 = 7,916,055.45/x
  3. Step 3: Cross multiply
    28,662,667.91x = 42,990,782.16 × 7,916,055.45
  4. Step 4: Simplify right side
    28,662,667.91x = 340,317,415,285,900.56
  5. Step 5: Solve for x
    x = 340,317,415,285,900.56/28,662,667.91
  6. Step 6: Final answer
    x = 11,873,193.95

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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.