Finding the Fourth Proportional to 689,496,534.80, 1,034,244,802.20 and 603,403,092.80
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Solution
The fourth proportional to 689,496,534.80, 1,034,244,802.20 and 603,403,092.80 is: 905,104,639.20
Step by Step Solution
- Step 1: Write the proportion equation
689,496,534.80 : 1,034,244,802.20 = 603,403,092.80 : x - Step 2: Convert to fraction form
689,496,534.80/1,034,244,802.20 = 603,403,092.80/x - Step 3: Cross multiply
689,496,534.80x = 1,034,244,802.20 × 603,403,092.80 - Step 4: Simplify right side
689,496,534.80x = 624,066,512,359,804,160 - Step 5: Solve for x
x = 624,066,512,359,804,160/689,496,534.80 - Step 6: Final answer
x = 905,104,639.20
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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.