Finding the Fourth Proportional to 158,511,836.20, 218,747,918.44 and 88,895,722.41
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Solution
The fourth proportional to 158,511,836.20, 218,747,918.44 and 88,895,722.41 is: 122,676,985.53
Step by Step Solution
- Step 1: Write the proportion equation
158,511,836.20 : 218,747,918.44 = 88,895,722.41 : x - Step 2: Convert to fraction form
158,511,836.20/218,747,918.44 = 88,895,722.41/x - Step 3: Cross multiply
158,511,836.20x = 218,747,918.44 × 88,895,722.41 - Step 4: Simplify right side
158,511,836.20x = 19,445,754,235,407,560 - Step 5: Solve for x
x = 19,445,754,235,407,560/158,511,836.20 - Step 6: Final answer
x = 122,676,985.53
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1.5x scale
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.