Home / 21,118,572.70-29,142,217.43-11,698,725.83

Finding the Fourth Proportional to 21,118,572.70, 29,142,217.43 and 11,698,725.83

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Solution

The fourth proportional to 21,118,572.70, 29,142,217.43 and 11,698,725.83 is: 16,143,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,118,572.70 : 29,142,217.43 = 11,698,725.83 : x
  2. Step 2: Convert to fraction form
    21,118,572.70/29,142,217.43 = 11,698,725.83/x
  3. Step 3: Cross multiply
    21,118,572.70x = 29,142,217.43 × 11,698,725.83
  4. Step 4: Simplify right side
    21,118,572.70x = 340,926,811,893,919.56
  5. Step 5: Solve for x
    x = 340,926,811,893,919.56/21,118,572.70
  6. Step 6: Final answer
    x = 16,143,458.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.