Home / 155,409,149-214,458,992.58-85,793,031.56

Finding the Fourth Proportional to 155,409,149, 214,458,992.58 and 85,793,031.56

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Solution

The fourth proportional to 155,409,149, 214,458,992.58 and 85,793,031.56 is: 118,391,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,409,149 : 214,458,992.58 = 85,793,031.56 : x
  2. Step 2: Convert to fraction form
    155,409,149/214,458,992.58 = 85,793,031.56/x
  3. Step 3: Cross multiply
    155,409,149x = 214,458,992.58 × 85,793,031.56
  4. Step 4: Simplify right side
    155,409,149x = 18,399,087,118,741,748
  5. Step 5: Solve for x
    x = 18,399,087,118,741,748/155,409,149
  6. Step 6: Final answer
    x = 118,391,273.85

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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.