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Finding the Fourth Proportional to 25,640,018.70, 38,460,028.05 and 8,596,581.90

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Solution

The fourth proportional to 25,640,018.70, 38,460,028.05 and 8,596,581.90 is: 12,894,872.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640,018.70 : 38,460,028.05 = 8,596,581.90 : x
  2. Step 2: Convert to fraction form
    25,640,018.70/38,460,028.05 = 8,596,581.90/x
  3. Step 3: Cross multiply
    25,640,018.70x = 38,460,028.05 × 8,596,581.90
  4. Step 4: Simplify right side
    25,640,018.70x = 330,624,781,008,122.31
  5. Step 5: Solve for x
    x = 330,624,781,008,122.31/25,640,018.70
  6. Step 6: Final answer
    x = 12,894,872.85

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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.