Home / 120,293,260.88-166,004,860.20-65,289,124.40

Finding the Fourth Proportional to 120,293,260.88, 166,004,860.20 and 65,289,124.40

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Solution

The fourth proportional to 120,293,260.88, 166,004,860.20 and 65,289,124.40 is: 90,099,078.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,293,260.88 : 166,004,860.20 = 65,289,124.40 : x
  2. Step 2: Convert to fraction form
    120,293,260.88/166,004,860.20 = 65,289,124.40/x
  3. Step 3: Cross multiply
    120,293,260.88x = 166,004,860.20 × 65,289,124.40
  4. Step 4: Simplify right side
    120,293,260.88x = 10,838,311,968,602,408
  5. Step 5: Solve for x
    x = 10,838,311,968,602,408/120,293,260.88
  6. Step 6: Final answer
    x = 90,099,078.61

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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.