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Finding the Fourth Proportional to 12,886,364.80, 19,329,109.80 and 3,301,837.30

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Solution

The fourth proportional to 12,886,364.80, 19,329,109.80 and 3,301,837.30 is: 4,952,643.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,364.80 : 19,329,109.80 = 3,301,837.30 : x
  2. Step 2: Convert to fraction form
    12,886,364.80/19,329,109.80 = 3,301,837.30/x
  3. Step 3: Cross multiply
    12,886,364.80x = 19,329,109.80 × 3,301,837.30
  4. Step 4: Simplify right side
    12,886,364.80x = 63,821,575,713,435.54
  5. Step 5: Solve for x
    x = 63,821,575,713,435.54/12,886,364.80
  6. Step 6: Final answer
    x = 4,952,643.88

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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.