Finding the Fourth Proportional to 147,998,387.28, 204,233,340.60 and 81,921,594
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Solution
The fourth proportional to 147,998,387.28, 204,233,340.60 and 81,921,594 is: 113,049,345.45
Step by Step Solution
- Step 1: Write the proportion equation
147,998,387.28 : 204,233,340.60 = 81,921,594 : x - Step 2: Convert to fraction form
147,998,387.28/204,233,340.60 = 81,921,594/x - Step 3: Cross multiply
147,998,387.28x = 204,233,340.60 × 81,921,594 - Step 4: Simplify right side
147,998,387.28x = 16,731,120,809,896,916 - Step 5: Solve for x
x = 16,731,120,809,896,916/147,998,387.28 - Step 6: Final answer
x = 113,049,345.45
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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.