Home / 309,589,217.51-427,227,714.12-168,455,676.71

Finding the Fourth Proportional to 309,589,217.51, 427,227,714.12 and 168,455,676.71

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Solution

The fourth proportional to 309,589,217.51, 427,227,714.12 and 168,455,676.71 is: 232,465,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,589,217.51 : 427,227,714.12 = 168,455,676.71 : x
  2. Step 2: Convert to fraction form
    309,589,217.51/427,227,714.12 = 168,455,676.71/x
  3. Step 3: Cross multiply
    309,589,217.51x = 427,227,714.12 × 168,455,676.71
  4. Step 4: Simplify right side
    309,589,217.51x = 71,968,933,693,050,800
  5. Step 5: Solve for x
    x = 71,968,933,693,050,800/309,589,217.51
  6. Step 6: Final answer
    x = 232,465,892.30

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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.