Finding the Fourth Proportional to 612,584,213.84, 845,437,684.40 and 348,305,805.24
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Solution
The fourth proportional to 612,584,213.84, 845,437,684.40 and 348,305,805.24 is: 480,702,647.56
Step by Step Solution
- Step 1: Write the proportion equation
612,584,213.84 : 845,437,684.40 = 348,305,805.24 : x - Step 2: Convert to fraction form
612,584,213.84/845,437,684.40 = 348,305,805.24/x - Step 3: Cross multiply
612,584,213.84x = 845,437,684.40 × 348,305,805.24 - Step 4: Simplify right side
612,584,213.84x = 294,470,853,445,182,976 - Step 5: Solve for x
x = 294,470,853,445,182,976/612,584,213.84 - Step 6: Final answer
x = 480,702,647.56
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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.