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Finding the Fourth Proportional to 12,886,004.80, 19,328,569.80 and 3,301,477.30

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Solution

The fourth proportional to 12,886,004.80, 19,328,569.80 and 3,301,477.30 is: 4,952,103.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,004.80 : 19,328,569.80 = 3,301,477.30 : x
  2. Step 2: Convert to fraction form
    12,886,004.80/19,328,569.80 = 3,301,477.30/x
  3. Step 3: Cross multiply
    12,886,004.80x = 19,328,569.80 × 3,301,477.30
  4. Step 4: Simplify right side
    12,886,004.80x = 63,812,834,436,165.54
  5. Step 5: Solve for x
    x = 63,812,834,436,165.54/12,886,004.80
  6. Step 6: Final answer
    x = 4,952,103.89

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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.