Home / 7,076,401.79-9,764,240.58-3,978,516.29

Finding the Fourth Proportional to 7,076,401.79, 9,764,240.58 and 3,978,516.29

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Solution

The fourth proportional to 7,076,401.79, 9,764,240.58 and 3,978,516.29 is: 5,489,681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076,401.79 : 9,764,240.58 = 3,978,516.29 : x
  2. Step 2: Convert to fraction form
    7,076,401.79/9,764,240.58 = 3,978,516.29/x
  3. Step 3: Cross multiply
    7,076,401.79x = 9,764,240.58 × 3,978,516.29
  4. Step 4: Simplify right side
    7,076,401.79x = 38,847,190,158,187.84
  5. Step 5: Solve for x
    x = 38,847,190,158,187.84/7,076,401.79
  6. Step 6: Final answer
    x = 5,489,681.24

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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.