Home / 21,048,076,975.26-31,561,784,230.41-10,412,012,464.86

Finding the Fourth Proportional to 21,048,076,975.26, 31,561,784,230.41 and 10,412,012,464.86

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Solution

The fourth proportional to 21,048,076,975.26, 31,561,784,230.41 and 10,412,012,464.86 is: 15,612,908,067.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048,076,975.26 : 31,561,784,230.41 = 10,412,012,464.86 : x
  2. Step 2: Convert to fraction form
    21,048,076,975.26/31,561,784,230.41 = 10,412,012,464.86/x
  3. Step 3: Cross multiply
    21,048,076,975.26x = 31,561,784,230.41 × 10,412,012,464.86
  4. Step 4: Simplify right side
    21,048,076,975.26x = 328,621,690,820,250,697,728
  5. Step 5: Solve for x
    x = 328,621,690,820,250,697,728/21,048,076,975.26
  6. Step 6: Final answer
    x = 15,612,908,067.87

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1.5x scale

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.