Home / 19,424,039.79-29,120,969.39-12,586,165.59

Finding the Fourth Proportional to 19,424,039.79, 29,120,969.39 and 12,586,165.59

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Solution

The fourth proportional to 19,424,039.79, 29,120,969.39 and 12,586,165.59 is: 18,869,470.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,424,039.79 : 29,120,969.39 = 12,586,165.59 : x
  2. Step 2: Convert to fraction form
    19,424,039.79/29,120,969.39 = 12,586,165.59/x
  3. Step 3: Cross multiply
    19,424,039.79x = 29,120,969.39 × 12,586,165.59
  4. Step 4: Simplify right side
    19,424,039.79x = 366,521,342,820,930.50
  5. Step 5: Solve for x
    x = 366,521,342,820,930.50/19,424,039.79
  6. Step 6: Final answer
    x = 18,869,470.35

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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.