Finding the Fourth Proportional to 369,932,328.36, 510,506,435.67 and 221,253,446.88
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Solution
The fourth proportional to 369,932,328.36, 510,506,435.67 and 221,253,446.88 is: 305,329,650.55
Step by Step Solution
- Step 1: Write the proportion equation
369,932,328.36 : 510,506,435.67 = 221,253,446.88 : x - Step 2: Convert to fraction form
369,932,328.36/510,506,435.67 = 221,253,446.88/x - Step 3: Cross multiply
369,932,328.36x = 510,506,435.67 × 221,253,446.88 - Step 4: Simplify right side
369,932,328.36x = 112,951,308,546,410,480 - Step 5: Solve for x
x = 112,951,308,546,410,480/369,932,328.36 - Step 6: Final answer
x = 305,329,650.55
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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.