Finding the Fourth Proportional to 7,971,631,872.16, 11,001,186,191.74 and 4,584,543,806.40
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Solution
The fourth proportional to 7,971,631,872.16, 11,001,186,191.74 and 4,584,543,806.40 is: 6,326,862,658.38
Step by Step Solution
- Step 1: Write the proportion equation
7,971,631,872.16 : 11,001,186,191.74 = 4,584,543,806.40 : x - Step 2: Convert to fraction form
7,971,631,872.16/11,001,186,191.74 = 4,584,543,806.40/x - Step 3: Cross multiply
7,971,631,872.16x = 11,001,186,191.74 × 4,584,543,806.40 - Step 4: Simplify right side
7,971,631,872.16x = 50,435,420,018,339,815,424 - Step 5: Solve for x
x = 50,435,420,018,339,815,424/7,971,631,872.16 - Step 6: Final answer
x = 6,326,862,658.38
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Double scale
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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.