Finding the Fourth Proportional to 809,512,221.60, 1,117,127,239.38 and 438,234,252.84
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Solution
The fourth proportional to 809,512,221.60, 1,117,127,239.38 and 438,234,252.84 is: 604,763,471.15
Step by Step Solution
- Step 1: Write the proportion equation
809,512,221.60 : 1,117,127,239.38 = 438,234,252.84 : x - Step 2: Convert to fraction form
809,512,221.60/1,117,127,239.38 = 438,234,252.84/x - Step 3: Cross multiply
809,512,221.60x = 1,117,127,239.38 × 438,234,252.84 - Step 4: Simplify right side
809,512,221.60x = 489,563,421,076,906,176 - Step 5: Solve for x
x = 489,563,421,076,906,176/809,512,221.60 - Step 6: Final answer
x = 604,763,471.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.