Finding the Fourth Proportional to 288,102,278.44, 397,581,088.26 and 155,943,248.68
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Solution
The fourth proportional to 288,102,278.44, 397,581,088.26 and 155,943,248.68 is: 215,201,652.87
Step by Step Solution
- Step 1: Write the proportion equation
288,102,278.44 : 397,581,088.26 = 155,943,248.68 : x - Step 2: Convert to fraction form
288,102,278.44/397,581,088.26 = 155,943,248.68/x - Step 3: Cross multiply
288,102,278.44x = 397,581,088.26 × 155,943,248.68 - Step 4: Simplify right side
288,102,278.44x = 62,000,086,516,994,208 - Step 5: Solve for x
x = 62,000,086,516,994,208/288,102,278.44 - Step 6: Final answer
x = 215,201,652.87
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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.