Home / 19,136,937.60-28,726,401.60-11,956,579.20

Finding the Fourth Proportional to 19,136,937.60, 28,726,401.60 and 11,956,579.20

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Solution

The fourth proportional to 19,136,937.60, 28,726,401.60 and 11,956,579.20 is: 17,947,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136,937.60 : 28,726,401.60 = 11,956,579.20 : x
  2. Step 2: Convert to fraction form
    19,136,937.60/28,726,401.60 = 11,956,579.20/x
  3. Step 3: Cross multiply
    19,136,937.60x = 28,726,401.60 × 11,956,579.20
  4. Step 4: Simplify right side
    19,136,937.60x = 343,469,495,861,406.69
  5. Step 5: Solve for x
    x = 343,469,495,861,406.69/19,136,937.60
  6. Step 6: Final answer
    x = 17,947,986.40

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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.