Home / 30,775,171,969.20-46,162,757,953.80-20,979,651,457.20

Finding the Fourth Proportional to 30,775,171,969.20, 46,162,757,953.80 and 20,979,651,457.20

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Solution

The fourth proportional to 30,775,171,969.20, 46,162,757,953.80 and 20,979,651,457.20 is: 31,469,477,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,775,171,969.20 : 46,162,757,953.80 = 20,979,651,457.20 : x
  2. Step 2: Convert to fraction form
    30,775,171,969.20/46,162,757,953.80 = 20,979,651,457.20/x
  3. Step 3: Cross multiply
    30,775,171,969.20x = 46,162,757,953.80 × 20,979,651,457.20
  4. Step 4: Simplify right side
    30,775,171,969.20x = 968,478,572,173,811,122,176
  5. Step 5: Solve for x
    x = 968,478,572,173,811,122,176/30,775,171,969.20
  6. Step 6: Final answer
    x = 31,469,477,185.80

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Double scale
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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.