Home / 15,762,811.99-21,749,986.60-9,145,883.53

Finding the Fourth Proportional to 15,762,811.99, 21,749,986.60 and 9,145,883.53

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Solution

The fourth proportional to 15,762,811.99, 21,749,986.60 and 9,145,883.53 is: 12,619,756.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,762,811.99 : 21,749,986.60 = 9,145,883.53 : x
  2. Step 2: Convert to fraction form
    15,762,811.99/21,749,986.60 = 9,145,883.53/x
  3. Step 3: Cross multiply
    15,762,811.99x = 21,749,986.60 × 9,145,883.53
  4. Step 4: Simplify right side
    15,762,811.99x = 198,922,844,222,660.69
  5. Step 5: Solve for x
    x = 198,922,844,222,660.69/15,762,811.99
  6. Step 6: Final answer
    x = 12,619,756.19

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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.