Finding the Fourth Proportional to 612,920,473.95, 845,848,199.12 and 334,479,944.55
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Solution
The fourth proportional to 612,920,473.95, 845,848,199.12 and 334,479,944.55 is: 461,592,116.37
Step by Step Solution
- Step 1: Write the proportion equation
612,920,473.95 : 845,848,199.12 = 334,479,944.55 : x - Step 2: Convert to fraction form
612,920,473.95/845,848,199.12 = 334,479,944.55/x - Step 3: Cross multiply
612,920,473.95x = 845,848,199.12 × 334,479,944.55 - Step 4: Simplify right side
612,920,473.95x = 282,919,258,737,702,560 - Step 5: Solve for x
x = 282,919,258,737,702,560/612,920,473.95 - Step 6: Final answer
x = 461,592,116.37
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1.5x scale
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.