Finding the Fourth Proportional to 985,998,701.70, 1,478,998,052.55 and 576,844,244.10
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Solution
The fourth proportional to 985,998,701.70, 1,478,998,052.55 and 576,844,244.10 is: 865,266,366.15
Step by Step Solution
- Step 1: Write the proportion equation
985,998,701.70 : 1,478,998,052.55 = 576,844,244.10 : x - Step 2: Convert to fraction form
985,998,701.70/1,478,998,052.55 = 576,844,244.10/x - Step 3: Cross multiply
985,998,701.70x = 1,478,998,052.55 × 576,844,244.10 - Step 4: Simplify right side
985,998,701.70x = 853,151,513,648,576,896 - Step 5: Solve for x
x = 853,151,513,648,576,896/985,998,701.70 - Step 6: Final answer
x = 865,266,366.15
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Double scale
Find fourth proportional to 985,998,702.70, 1,478,998,054.05 and 576,844,245.10
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.