Home / 13,289,636.80-19,934,455.20-13,163,665.60

Finding the Fourth Proportional to 13,289,636.80, 19,934,455.20 and 13,163,665.60

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Solution

The fourth proportional to 13,289,636.80, 19,934,455.20 and 13,163,665.60 is: 19,745,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289,636.80 : 19,934,455.20 = 13,163,665.60 : x
  2. Step 2: Convert to fraction form
    13,289,636.80/19,934,455.20 = 13,163,665.60/x
  3. Step 3: Cross multiply
    13,289,636.80x = 19,934,455.20 × 13,163,665.60
  4. Step 4: Simplify right side
    13,289,636.80x = 262,410,502,170,981.09
  5. Step 5: Solve for x
    x = 262,410,502,170,981.09/13,289,636.80
  6. Step 6: Final answer
    x = 19,745,498.40

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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.