Finding the Fourth Proportional to 648,690,768.21, 895,207,715.33 and 370,226,706.69
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Solution
The fourth proportional to 648,690,768.21, 895,207,715.33 and 370,226,706.69 is: 510,921,105.23
Step by Step Solution
- Step 1: Write the proportion equation
648,690,768.21 : 895,207,715.33 = 370,226,706.69 : x - Step 2: Convert to fraction form
648,690,768.21/895,207,715.33 = 370,226,706.69/x - Step 3: Cross multiply
648,690,768.21x = 895,207,715.33 × 370,226,706.69 - Step 4: Simplify right side
648,690,768.21x = 331,429,804,248,253,824 - Step 5: Solve for x
x = 331,429,804,248,253,824/648,690,768.21 - Step 6: Final answer
x = 510,921,105.23
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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.