Finding the Fourth Proportional to 902,804,911.35, 1,354,207,367.03 and 808,102,125.15
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Solution
The fourth proportional to 902,804,911.35, 1,354,207,367.03 and 808,102,125.15 is: 1,212,153,187.73
Step by Step Solution
- Step 1: Write the proportion equation
902,804,911.35 : 1,354,207,367.03 = 808,102,125.15 : x - Step 2: Convert to fraction form
902,804,911.35/1,354,207,367.03 = 808,102,125.15/x - Step 3: Cross multiply
902,804,911.35x = 1,354,207,367.03 × 808,102,125.15 - Step 4: Simplify right side
902,804,911.35x = 1,094,337,851,186,688,640 - Step 5: Solve for x
x = 1,094,337,851,186,688,640/902,804,911.35 - Step 6: Final answer
x = 1,212,153,187.73
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Double scale
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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.