Finding the Fourth Proportional to 121,279,553.80, 181,919,330.70 and 66,671,038.60
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Solution
The fourth proportional to 121,279,553.80, 181,919,330.70 and 66,671,038.60 is: 100,006,557.90
Step by Step Solution
- Step 1: Write the proportion equation
121,279,553.80 : 181,919,330.70 = 66,671,038.60 : x - Step 2: Convert to fraction form
121,279,553.80/181,919,330.70 = 66,671,038.60/x - Step 3: Cross multiply
121,279,553.80x = 181,919,330.70 × 66,671,038.60 - Step 4: Simplify right side
121,279,553.80x = 12,128,750,719,185,864 - Step 5: Solve for x
x = 12,128,750,719,185,864/121,279,553.80 - Step 6: Final answer
x = 100,006,557.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.