Finding the Fourth Proportional to 382,042,727.28, 527,213,920.44 and 212,495,821.68
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Solution
The fourth proportional to 382,042,727.28, 527,213,920.44 and 212,495,821.68 is: 293,241,428.84
Step by Step Solution
- Step 1: Write the proportion equation
382,042,727.28 : 527,213,920.44 = 212,495,821.68 : x - Step 2: Convert to fraction form
382,042,727.28/527,213,920.44 = 212,495,821.68/x - Step 3: Cross multiply
382,042,727.28x = 527,213,920.44 × 212,495,821.68 - Step 4: Simplify right side
382,042,727.28x = 112,030,755,225,031,952 - Step 5: Solve for x
x = 112,030,755,225,031,952/382,042,727.28 - Step 6: Final answer
x = 293,241,428.84
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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.