Finding the Fourth Proportional to 97,994,472.70, 146,991,709.05 and 68,769,154.30
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Solution
The fourth proportional to 97,994,472.70, 146,991,709.05 and 68,769,154.30 is: 103,153,731.45
Step by Step Solution
- Step 1: Write the proportion equation
97,994,472.70 : 146,991,709.05 = 68,769,154.30 : x - Step 2: Convert to fraction form
97,994,472.70/146,991,709.05 = 68,769,154.30/x - Step 3: Cross multiply
97,994,472.70x = 146,991,709.05 × 68,769,154.30 - Step 4: Simplify right side
97,994,472.70x = 10,108,495,520,480,156 - Step 5: Solve for x
x = 10,108,495,520,480,156/97,994,472.70 - Step 6: Final answer
x = 103,153,731.45
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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.