Home / 15,926,933.75-21,978,535.50-9,402,664.86

Finding the Fourth Proportional to 15,926,933.75, 21,978,535.50 and 9,402,664.86

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Solution

The fourth proportional to 15,926,933.75, 21,978,535.50 and 9,402,664.86 is: 12,975,303.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,926,933.75 : 21,978,535.50 = 9,402,664.86 : x
  2. Step 2: Convert to fraction form
    15,926,933.75/21,978,535.50 = 9,402,664.86/x
  3. Step 3: Cross multiply
    15,926,933.75x = 21,978,535.50 × 9,402,664.86
  4. Step 4: Simplify right side
    15,926,933.75x = 206,656,803,420,112.53
  5. Step 5: Solve for x
    x = 206,656,803,420,112.53/15,926,933.75
  6. Step 6: Final answer
    x = 12,975,303.77

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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.