Finding the Fourth Proportional to 1,119,745,108.70, 1,679,617,663.05 and 847,647,316.70
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Solution
The fourth proportional to 1,119,745,108.70, 1,679,617,663.05 and 847,647,316.70 is: 1,271,470,975.05
Step by Step Solution
- Step 1: Write the proportion equation
1,119,745,108.70 : 1,679,617,663.05 = 847,647,316.70 : x - Step 2: Convert to fraction form
1,119,745,108.70/1,679,617,663.05 = 847,647,316.70/x - Step 3: Cross multiply
1,119,745,108.70x = 1,679,617,663.05 × 847,647,316.70 - Step 4: Simplify right side
1,119,745,108.70x = 1,423,723,405,166,257,152 - Step 5: Solve for x
x = 1,423,723,405,166,257,152/1,119,745,108.70 - Step 6: Final answer
x = 1,271,470,975.05
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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.