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Finding the Fourth Proportional to 25,843,891.63, 38,742,374.01 and 12,894,003.06

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Solution

The fourth proportional to 25,843,891.63, 38,742,374.01 and 12,894,003.06 is: 19,329,298.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,843,891.63 : 38,742,374.01 = 12,894,003.06 : x
  2. Step 2: Convert to fraction form
    25,843,891.63/38,742,374.01 = 12,894,003.06/x
  3. Step 3: Cross multiply
    25,843,891.63x = 38,742,374.01 × 12,894,003.06
  4. Step 4: Simplify right side
    25,843,891.63x = 499,544,289,021,521
  5. Step 5: Solve for x
    x = 499,544,289,021,521/25,843,891.63
  6. Step 6: Final answer
    x = 19,329,298.24

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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.