Home / 13,426,586.69-18,530,911.77-7,921,307.48

Finding the Fourth Proportional to 13,426,586.69, 18,530,911.77 and 7,921,307.48

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Solution

The fourth proportional to 13,426,586.69, 18,530,911.77 and 7,921,307.48 is: 10,932,715.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426,586.69 : 18,530,911.77 = 7,921,307.48 : x
  2. Step 2: Convert to fraction form
    13,426,586.69/18,530,911.77 = 7,921,307.48/x
  3. Step 3: Cross multiply
    13,426,586.69x = 18,530,911.77 × 7,921,307.48
  4. Step 4: Simplify right side
    13,426,586.69x = 146,789,050,014,921.03
  5. Step 5: Solve for x
    x = 146,789,050,014,921.03/13,426,586.69
  6. Step 6: Final answer
    x = 10,932,715.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.