Home / 30,570,043.78-42,186,843.89-16,631,498.87

Finding the Fourth Proportional to 30,570,043.78, 42,186,843.89 and 16,631,498.87

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Solution

The fourth proportional to 30,570,043.78, 42,186,843.89 and 16,631,498.87 is: 22,951,568.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,570,043.78 : 42,186,843.89 = 16,631,498.87 : x
  2. Step 2: Convert to fraction form
    30,570,043.78/42,186,843.89 = 16,631,498.87/x
  3. Step 3: Cross multiply
    30,570,043.78x = 42,186,843.89 × 16,631,498.87
  4. Step 4: Simplify right side
    30,570,043.78x = 701,630,446,485,401.38
  5. Step 5: Solve for x
    x = 701,630,446,485,401.38/30,570,043.78
  6. Step 6: Final answer
    x = 22,951,568.26

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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.