Finding the Fourth Proportional to 489,943,385.80, 734,915,078.70 and 166,827,257.80
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Solution
The fourth proportional to 489,943,385.80, 734,915,078.70 and 166,827,257.80 is: 250,240,886.70
Step by Step Solution
- Step 1: Write the proportion equation
489,943,385.80 : 734,915,078.70 = 166,827,257.80 : x - Step 2: Convert to fraction form
489,943,385.80/734,915,078.70 = 166,827,257.80/x - Step 3: Cross multiply
489,943,385.80x = 734,915,078.70 × 166,827,257.80 - Step 4: Simplify right side
489,943,385.80x = 122,603,867,295,392,208 - Step 5: Solve for x
x = 122,603,867,295,392,208/489,943,385.80 - Step 6: Final answer
x = 250,240,886.70
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Similar ratio
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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.