Finding the Fourth Proportional to 2,921,970,737.69, 4,382,894,700.18 and 711,192,785.23
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Solution
The fourth proportional to 2,921,970,737.69, 4,382,894,700.18 and 711,192,785.23 is: 1,066,774,231.85
Step by Step Solution
- Step 1: Write the proportion equation
2,921,970,737.69 : 4,382,894,700.18 = 711,192,785.23 : x - Step 2: Convert to fraction form
2,921,970,737.69/4,382,894,700.18 = 711,192,785.23/x - Step 3: Cross multiply
2,921,970,737.69x = 4,382,894,700.18 × 711,192,785.23 - Step 4: Simplify right side
2,921,970,737.69x = 3,117,083,089,190,820,352 - Step 5: Solve for x
x = 3,117,083,089,190,820,352/2,921,970,737.69 - Step 6: Final answer
x = 1,066,774,231.85
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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.