Finding the Fourth Proportional to 5,388,903,964.80, 8,083,355,947.20 and 2,630,302,646.40
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Solution
The fourth proportional to 5,388,903,964.80, 8,083,355,947.20 and 2,630,302,646.40 is: 3,945,453,969.60
Step by Step Solution
- Step 1: Write the proportion equation
5,388,903,964.80 : 8,083,355,947.20 = 2,630,302,646.40 : x - Step 2: Convert to fraction form
5,388,903,964.80/8,083,355,947.20 = 2,630,302,646.40/x - Step 3: Cross multiply
5,388,903,964.80x = 8,083,355,947.20 × 2,630,302,646.40 - Step 4: Simplify right side
5,388,903,964.80x = 21,261,672,539,713,339,392 - Step 5: Solve for x
x = 21,261,672,539,713,339,392/5,388,903,964.80 - Step 6: Final answer
x = 3,945,453,969.60
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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.