Finding the Fourth Proportional to 638,882,283.12, 881,657,543.88 and 345,526,851.12
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Solution
The fourth proportional to 638,882,283.12, 881,657,543.88 and 345,526,851.12 is: 476,827,050.85
Step by Step Solution
- Step 1: Write the proportion equation
638,882,283.12 : 881,657,543.88 = 345,526,851.12 : x - Step 2: Convert to fraction form
638,882,283.12/881,657,543.88 = 345,526,851.12/x - Step 3: Cross multiply
638,882,283.12x = 881,657,543.88 × 345,526,851.12 - Step 4: Simplify right side
638,882,283.12x = 304,636,354,903,049,600 - Step 5: Solve for x
x = 304,636,354,903,049,600/638,882,283.12 - Step 6: Final answer
x = 476,827,050.85
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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.