Home / 155,409,148-214,458,991.20-85,793,030.56

Finding the Fourth Proportional to 155,409,148, 214,458,991.20 and 85,793,030.56

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Solution

The fourth proportional to 155,409,148, 214,458,991.20 and 85,793,030.56 is: 118,391,272.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,409,148 : 214,458,991.20 = 85,793,030.56 : x
  2. Step 2: Convert to fraction form
    155,409,148/214,458,991.20 = 85,793,030.56/x
  3. Step 3: Cross multiply
    155,409,148x = 214,458,991.20 × 85,793,030.56
  4. Step 4: Simplify right side
    155,409,148x = 18,399,086,785,888,372
  5. Step 5: Solve for x
    x = 18,399,086,785,888,372/155,409,148
  6. Step 6: Final answer
    x = 118,391,272.47

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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.