Home / 13,990,341.51-20,989,405.56-6,103,786.54

Finding the Fourth Proportional to 13,990,341.51, 20,989,405.56 and 6,103,786.54

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Solution

The fourth proportional to 13,990,341.51, 20,989,405.56 and 6,103,786.54 is: 9,157,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,341.51 : 20,989,405.56 = 6,103,786.54 : x
  2. Step 2: Convert to fraction form
    13,990,341.51/20,989,405.56 = 6,103,786.54/x
  3. Step 3: Cross multiply
    13,990,341.51x = 20,989,405.56 × 6,103,786.54
  4. Step 4: Simplify right side
    13,990,341.51x = 128,114,851,139,729.16
  5. Step 5: Solve for x
    x = 128,114,851,139,729.16/13,990,341.51
  6. Step 6: Final answer
    x = 9,157,378.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.