Home / 140,342,776.51-210,103,664.83-81,871,669.39

Finding the Fourth Proportional to 140,342,776.51, 210,103,664.83 and 81,871,669.39

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Solution

The fourth proportional to 140,342,776.51, 210,103,664.83 and 81,871,669.39 is: 122,568,031.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,342,776.51 : 210,103,664.83 = 81,871,669.39 : x
  2. Step 2: Convert to fraction form
    140,342,776.51/210,103,664.83 = 81,871,669.39/x
  3. Step 3: Cross multiply
    140,342,776.51x = 210,103,664.83 × 81,871,669.39
  4. Step 4: Simplify right side
    140,342,776.51x = 17,201,537,784,589,132
  5. Step 5: Solve for x
    x = 17,201,537,784,589,132/140,342,776.51
  6. Step 6: Final answer
    x = 122,568,031.02

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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.