Finding the Fourth Proportional to 902,804,912.10, 1,354,207,368.15 and 808,102,125.90
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Solution
The fourth proportional to 902,804,912.10, 1,354,207,368.15 and 808,102,125.90 is: 1,212,153,188.85
Step by Step Solution
- Step 1: Write the proportion equation
902,804,912.10 : 1,354,207,368.15 = 808,102,125.90 : x - Step 2: Convert to fraction form
902,804,912.10/1,354,207,368.15 = 808,102,125.90/x - Step 3: Cross multiply
902,804,912.10x = 1,354,207,368.15 × 808,102,125.90 - Step 4: Simplify right side
902,804,912.10x = 1,094,337,853,111,458,944 - Step 5: Solve for x
x = 1,094,337,853,111,458,944/902,804,912.10 - Step 6: Final answer
x = 1,212,153,188.85
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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.