Home / 120,293,261.13-166,004,860.55-65,289,124.65

Finding the Fourth Proportional to 120,293,261.13, 166,004,860.55 and 65,289,124.65

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Solution

The fourth proportional to 120,293,261.13, 166,004,860.55 and 65,289,124.65 is: 90,099,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,293,261.13 : 166,004,860.55 = 65,289,124.65 : x
  2. Step 2: Convert to fraction form
    120,293,261.13/166,004,860.55 = 65,289,124.65/x
  3. Step 3: Cross multiply
    120,293,261.13x = 166,004,860.55 × 65,289,124.65
  4. Step 4: Simplify right side
    120,293,261.13x = 10,838,312,032,628,370
  5. Step 5: Solve for x
    x = 10,838,312,032,628,370/120,293,261.13
  6. Step 6: Final answer
    x = 90,099,078.96

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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.