Finding the Fourth Proportional to 671,574,872.84, 1,006,598,161.74 and 408,679,598.12
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Solution
The fourth proportional to 671,574,872.84, 1,006,598,161.74 and 408,679,598.12 is: 612,554,383.50
Step by Step Solution
- Step 1: Write the proportion equation
671,574,872.84 : 1,006,598,161.74 = 408,679,598.12 : x - Step 2: Convert to fraction form
671,574,872.84/1,006,598,161.74 = 408,679,598.12/x - Step 3: Cross multiply
671,574,872.84x = 1,006,598,161.74 × 408,679,598.12 - Step 4: Simplify right side
671,574,872.84x = 411,376,132,208,233,984 - Step 5: Solve for x
x = 411,376,132,208,233,984/671,574,872.84 - Step 6: Final answer
x = 612,554,383.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.