Home / 29,079,851.45-40,129,674.37-15,849,147.53

Finding the Fourth Proportional to 29,079,851.45, 40,129,674.37 and 15,849,147.53

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Solution

The fourth proportional to 29,079,851.45, 40,129,674.37 and 15,849,147.53 is: 21,871,539.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,079,851.45 : 40,129,674.37 = 15,849,147.53 : x
  2. Step 2: Convert to fraction form
    29,079,851.45/40,129,674.37 = 15,849,147.53/x
  3. Step 3: Cross multiply
    29,079,851.45x = 40,129,674.37 × 15,849,147.53
  4. Step 4: Simplify right side
    29,079,851.45x = 636,021,129,420,989.75
  5. Step 5: Solve for x
    x = 636,021,129,420,989.75/29,079,851.45
  6. Step 6: Final answer
    x = 21,871,539.84

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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.