Home / 6,889,636.41-9,507,080.27-3,989,223.05

Finding the Fourth Proportional to 6,889,636.41, 9,507,080.27 and 3,989,223.05

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Solution

The fourth proportional to 6,889,636.41, 9,507,080.27 and 3,989,223.05 is: 5,504,769.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889,636.41 : 9,507,080.27 = 3,989,223.05 : x
  2. Step 2: Convert to fraction form
    6,889,636.41/9,507,080.27 = 3,989,223.05/x
  3. Step 3: Cross multiply
    6,889,636.41x = 9,507,080.27 × 3,989,223.05
  4. Step 4: Simplify right side
    6,889,636.41x = 37,925,863,683,802.71
  5. Step 5: Solve for x
    x = 37,925,863,683,802.71/6,889,636.41
  6. Step 6: Final answer
    x = 5,504,769.98

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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.