Home / 30,865,145.36-42,589,985.88-16,922,831.60

Finding the Fourth Proportional to 30,865,145.36, 42,589,985.88 and 16,922,831.60

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Solution

The fourth proportional to 30,865,145.36, 42,589,985.88 and 16,922,831.60 is: 23,351,361.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,865,145.36 : 42,589,985.88 = 16,922,831.60 : x
  2. Step 2: Convert to fraction form
    30,865,145.36/42,589,985.88 = 16,922,831.60/x
  3. Step 3: Cross multiply
    30,865,145.36x = 42,589,985.88 × 16,922,831.60
  4. Step 4: Simplify right side
    30,865,145.36x = 720,743,158,893,617.88
  5. Step 5: Solve for x
    x = 720,743,158,893,617.88/30,865,145.36
  6. Step 6: Final answer
    x = 23,351,361.24

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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.