Home / 13,565,212.68-18,718,907.58-7,762,664.28

Finding the Fourth Proportional to 13,565,212.68, 18,718,907.58 and 7,762,664.28

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Solution

The fourth proportional to 13,565,212.68, 18,718,907.58 and 7,762,664.28 is: 10,711,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565,212.68 : 18,718,907.58 = 7,762,664.28 : x
  2. Step 2: Convert to fraction form
    13,565,212.68/18,718,907.58 = 7,762,664.28/x
  3. Step 3: Cross multiply
    13,565,212.68x = 18,718,907.58 × 7,762,664.28
  4. Step 4: Simplify right side
    13,565,212.68x = 145,308,595,231,887.22
  5. Step 5: Solve for x
    x = 145,308,595,231,887.22/13,565,212.68
  6. Step 6: Final answer
    x = 10,711,855.29

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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.