Finding the Fourth Proportional to 68,571,418,159.12, 102,857,473,951.12 and 21,403,938,151.12
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Solution
The fourth proportional to 68,571,418,159.12, 102,857,473,951.12 and 21,403,938,151.12 is: 32,106,015,449.78
Step by Step Solution
- Step 1: Write the proportion equation
68,571,418,159.12 : 102,857,473,951.12 = 21,403,938,151.12 : x - Step 2: Convert to fraction form
68,571,418,159.12/102,857,473,951.12 = 21,403,938,151.12/x - Step 3: Cross multiply
68,571,418,159.12x = 102,857,473,951.12 × 21,403,938,151.12 - Step 4: Simplify right side
68,571,418,159.12x = 2,201,555,010,830,208,860,160 - Step 5: Solve for x
x = 2,201,555,010,830,208,860,160/68,571,418,159.12 - Step 6: Final answer
x = 32,106,015,449.78
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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.