Home / 19,213,221.72-28,823,325.30-9,115,748.76

Finding the Fourth Proportional to 19,213,221.72, 28,823,325.30 and 9,115,748.76

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Solution

The fourth proportional to 19,213,221.72, 28,823,325.30 and 9,115,748.76 is: 13,675,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213,221.72 : 28,823,325.30 = 9,115,748.76 : x
  2. Step 2: Convert to fraction form
    19,213,221.72/28,823,325.30 = 9,115,748.76/x
  3. Step 3: Cross multiply
    19,213,221.72x = 28,823,325.30 × 9,115,748.76
  4. Step 4: Simplify right side
    19,213,221.72x = 262,746,191,862,551.62
  5. Step 5: Solve for x
    x = 262,746,191,862,551.62/19,213,221.72
  6. Step 6: Final answer
    x = 13,675,280.27

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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.