Finding the Fourth Proportional to 705,371,266.26, 973,294,686.36 and 392,062,881.96
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Solution
The fourth proportional to 705,371,266.26, 973,294,686.36 and 392,062,881.96 is: 540,981,378.15
Step by Step Solution
- Step 1: Write the proportion equation
705,371,266.26 : 973,294,686.36 = 392,062,881.96 : x - Step 2: Convert to fraction form
705,371,266.26/973,294,686.36 = 392,062,881.96/x - Step 3: Cross multiply
705,371,266.26x = 973,294,686.36 × 392,062,881.96 - Step 4: Simplify right side
705,371,266.26x = 381,592,719,730,655,872 - Step 5: Solve for x
x = 381,592,719,730,655,872/705,371,266.26 - Step 6: Final answer
x = 540,981,378.15
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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.