Home / 55,172,905.38-76,140,971.40-30,726,619.38

Finding the Fourth Proportional to 55,172,905.38, 76,140,971.40 and 30,726,619.38

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Solution

The fourth proportional to 55,172,905.38, 76,140,971.40 and 30,726,619.38 is: 42,404,050.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,172,905.38 : 76,140,971.40 = 30,726,619.38 : x
  2. Step 2: Convert to fraction form
    55,172,905.38/76,140,971.40 = 30,726,619.38/x
  3. Step 3: Cross multiply
    55,172,905.38x = 76,140,971.40 × 30,726,619.38
  4. Step 4: Simplify right side
    55,172,905.38x = 2,339,554,647,431,266
  5. Step 5: Solve for x
    x = 2,339,554,647,431,266/55,172,905.38
  6. Step 6: Final answer
    x = 42,404,050.16

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1.5x scale

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.