Home / 21,553,905.70-32,330,858.55-19,215,565.30

Finding the Fourth Proportional to 21,553,905.70, 32,330,858.55 and 19,215,565.30

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Solution

The fourth proportional to 21,553,905.70, 32,330,858.55 and 19,215,565.30 is: 28,823,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553,905.70 : 32,330,858.55 = 19,215,565.30 : x
  2. Step 2: Convert to fraction form
    21,553,905.70/32,330,858.55 = 19,215,565.30/x
  3. Step 3: Cross multiply
    21,553,905.70x = 32,330,858.55 × 19,215,565.30
  4. Step 4: Simplify right side
    21,553,905.70x = 621,255,723,672,588.38
  5. Step 5: Solve for x
    x = 621,255,723,672,588.38/21,553,905.70
  6. Step 6: Final answer
    x = 28,823,347.95

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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.