Home / 140,403,771.83-210,195,857.64-81,932,271.05

Finding the Fourth Proportional to 140,403,771.83, 210,195,857.64 and 81,932,271.05

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Solution

The fourth proportional to 140,403,771.83, 210,195,857.64 and 81,932,271.05 is: 122,659,268.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,403,771.83 : 210,195,857.64 = 81,932,271.05 : x
  2. Step 2: Convert to fraction form
    140,403,771.83/210,195,857.64 = 81,932,271.05/x
  3. Step 3: Cross multiply
    140,403,771.83x = 210,195,857.64 × 81,932,271.05
  4. Step 4: Simplify right side
    140,403,771.83x = 17,221,823,980,696,714
  5. Step 5: Solve for x
    x = 17,221,823,980,696,714/140,403,771.83
  6. Step 6: Final answer
    x = 122,659,268.74

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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.