Home / 155,404,254.81-214,458,556.61-85,790,207.73

Finding the Fourth Proportional to 155,404,254.81, 214,458,556.61 and 85,790,207.73

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Solution

The fourth proportional to 155,404,254.81, 214,458,556.61 and 85,790,207.73 is: 118,390,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,404,254.81 : 214,458,556.61 = 85,790,207.73 : x
  2. Step 2: Convert to fraction form
    155,404,254.81/214,458,556.61 = 85,790,207.73/x
  3. Step 3: Cross multiply
    155,404,254.81x = 214,458,556.61 × 85,790,207.73
  4. Step 4: Simplify right side
    155,404,254.81x = 18,398,444,121,047,868
  5. Step 5: Solve for x
    x = 18,398,444,121,047,868/155,404,254.81
  6. Step 6: Final answer
    x = 118,390,864.80

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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.