Home / 140,342,775.51-210,103,663.34-81,871,668.39

Finding the Fourth Proportional to 140,342,775.51, 210,103,663.34 and 81,871,668.39

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Solution

The fourth proportional to 140,342,775.51, 210,103,663.34 and 81,871,668.39 is: 122,568,029.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,342,775.51 : 210,103,663.34 = 81,871,668.39 : x
  2. Step 2: Convert to fraction form
    140,342,775.51/210,103,663.34 = 81,871,668.39/x
  3. Step 3: Cross multiply
    140,342,775.51x = 210,103,663.34 × 81,871,668.39
  4. Step 4: Simplify right side
    140,342,775.51x = 17,201,537,452,087,322
  5. Step 5: Solve for x
    x = 17,201,537,452,087,322/140,342,775.51
  6. Step 6: Final answer
    x = 122,568,029.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.