Home / 30,821,709.38-42,532,447.48-16,883,126.32

Finding the Fourth Proportional to 30,821,709.38, 42,532,447.48 and 16,883,126.32

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Solution

The fourth proportional to 30,821,709.38, 42,532,447.48 and 16,883,126.32 is: 23,297,886.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821,709.38 : 42,532,447.48 = 16,883,126.32 : x
  2. Step 2: Convert to fraction form
    30,821,709.38/42,532,447.48 = 16,883,126.32/x
  3. Step 3: Cross multiply
    30,821,709.38x = 42,532,447.48 × 16,883,126.32
  4. Step 4: Simplify right side
    30,821,709.38x = 718,080,683,514,563.38
  5. Step 5: Solve for x
    x = 718,080,683,514,563.38/30,821,709.38
  6. Step 6: Final answer
    x = 23,297,886.39

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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.