Home / 170,720,541.36-256,080,996.72-79,907,903.28

Finding the Fourth Proportional to 170,720,541.36, 256,080,996.72 and 79,907,903.28

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Solution

The fourth proportional to 170,720,541.36, 256,080,996.72 and 79,907,903.28 is: 119,861,941.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,720,541.36 : 256,080,996.72 = 79,907,903.28 : x
  2. Step 2: Convert to fraction form
    170,720,541.36/256,080,996.72 = 79,907,903.28/x
  3. Step 3: Cross multiply
    170,720,541.36x = 256,080,996.72 × 79,907,903.28
  4. Step 4: Simplify right side
    170,720,541.36x = 20,462,895,517,747,756
  5. Step 5: Solve for x
    x = 20,462,895,517,747,756/170,720,541.36
  6. Step 6: Final answer
    x = 119,861,941.36

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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.