Finding the Fourth Proportional to 5,979,185,765.20, 8,968,778,647.80 and 3,915,273,624.40
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Solution
The fourth proportional to 5,979,185,765.20, 8,968,778,647.80 and 3,915,273,624.40 is: 5,872,910,436.60
Step by Step Solution
- Step 1: Write the proportion equation
5,979,185,765.20 : 8,968,778,647.80 = 3,915,273,624.40 : x - Step 2: Convert to fraction form
5,979,185,765.20/8,968,778,647.80 = 3,915,273,624.40/x - Step 3: Cross multiply
5,979,185,765.20x = 8,968,778,647.80 × 3,915,273,624.40 - Step 4: Simplify right side
5,979,185,765.20x = 35,115,222,482,813,235,200 - Step 5: Solve for x
x = 35,115,222,482,813,235,200/5,979,185,765.20 - Step 6: Final answer
x = 5,872,910,436.60
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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.