Home / 13,479,916.70-20,219,875.05-3,895,607.90

Finding the Fourth Proportional to 13,479,916.70, 20,219,875.05 and 3,895,607.90

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Solution

The fourth proportional to 13,479,916.70, 20,219,875.05 and 3,895,607.90 is: 5,843,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,916.70 : 20,219,875.05 = 3,895,607.90 : x
  2. Step 2: Convert to fraction form
    13,479,916.70/20,219,875.05 = 3,895,607.90/x
  3. Step 3: Cross multiply
    13,479,916.70x = 20,219,875.05 × 3,895,607.90
  4. Step 4: Simplify right side
    13,479,916.70x = 78,768,704,981,792.89
  5. Step 5: Solve for x
    x = 78,768,704,981,792.89/13,479,916.70
  6. Step 6: Final answer
    x = 5,843,411.85

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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.