Home / 82,005,720.72-113,170,256.52-45,338,653.68

Finding the Fourth Proportional to 82,005,720.72, 113,170,256.52 and 45,338,653.68

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Solution

The fourth proportional to 82,005,720.72, 113,170,256.52 and 45,338,653.68 is: 62,568,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,005,720.72 : 113,170,256.52 = 45,338,653.68 : x
  2. Step 2: Convert to fraction form
    82,005,720.72/113,170,256.52 = 45,338,653.68/x
  3. Step 3: Cross multiply
    82,005,720.72x = 113,170,256.52 × 45,338,653.68
  4. Step 4: Simplify right side
    82,005,720.72x = 5,130,987,067,237,042
  5. Step 5: Solve for x
    x = 5,130,987,067,237,042/82,005,720.72
  6. Step 6: Final answer
    x = 62,568,647.92

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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.