Home / 1,992,396,145.40-2,984,563,139.70-1,379,672,228.60

Finding the Fourth Proportional to 1,992,396,145.40, 2,984,563,139.70 and 1,379,672,228.60

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Solution

The fourth proportional to 1,992,396,145.40, 2,984,563,139.70 and 1,379,672,228.60 is: 2,066,716,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,396,145.40 : 2,984,563,139.70 = 1,379,672,228.60 : x
  2. Step 2: Convert to fraction form
    1,992,396,145.40/2,984,563,139.70 = 1,379,672,228.60/x
  3. Step 3: Cross multiply
    1,992,396,145.40x = 2,984,563,139.70 × 1,379,672,228.60
  4. Step 4: Simplify right side
    1,992,396,145.40x = 4,117,718,878,347,311,616
  5. Step 5: Solve for x
    x = 4,117,718,878,347,311,616/1,992,396,145.40
  6. Step 6: Final answer
    x = 2,066,716,946.75

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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.