Finding the Fourth Proportional to 74,576,727,951.82, 102,915,925,787.62 and 40,282,434,307.79
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Solution
The fourth proportional to 74,576,727,951.82, 102,915,925,787.62 and 40,282,434,307.79 is: 55,589,781,606.45
Step by Step Solution
- Step 1: Write the proportion equation
74,576,727,951.82 : 102,915,925,787.62 = 40,282,434,307.79 : x - Step 2: Convert to fraction form
74,576,727,951.82/102,915,925,787.62 = 40,282,434,307.79/x - Step 3: Cross multiply
74,576,727,951.82x = 102,915,925,787.62 × 40,282,434,307.79 - Step 4: Simplify right side
74,576,727,951.82x = 4,145,704,019,765,193,342,976 - Step 5: Solve for x
x = 4,145,704,019,765,193,342,976/74,576,727,951.82 - Step 6: Final answer
x = 55,589,781,606.45
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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.