Home / 153,682,766.85-212,083,900.96-84,068,148.41

Finding the Fourth Proportional to 153,682,766.85, 212,083,900.96 and 84,068,148.41

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Solution

The fourth proportional to 153,682,766.85, 212,083,900.96 and 84,068,148.41 is: 116,014,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,682,766.85 : 212,083,900.96 = 84,068,148.41 : x
  2. Step 2: Convert to fraction form
    153,682,766.85/212,083,900.96 = 84,068,148.41/x
  3. Step 3: Cross multiply
    153,682,766.85x = 212,083,900.96 × 84,068,148.41
  4. Step 4: Simplify right side
    153,682,766.85x = 17,829,500,861,277,022
  5. Step 5: Solve for x
    x = 17,829,500,861,277,022/153,682,766.85
  6. Step 6: Final answer
    x = 116,014,965.29

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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.