Finding the Fourth Proportional to 145,672,337.70, 218,473,514.55 and 84,128,408.10
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Solution
The fourth proportional to 145,672,337.70, 218,473,514.55 and 84,128,408.10 is: 126,172,403.64
Step by Step Solution
- Step 1: Write the proportion equation
145,672,337.70 : 218,473,514.55 = 84,128,408.10 : x - Step 2: Convert to fraction form
145,672,337.70/218,473,514.55 = 84,128,408.10/x - Step 3: Cross multiply
145,672,337.70x = 218,473,514.55 × 84,128,408.10 - Step 4: Simplify right side
145,672,337.70x = 18,379,828,991,103,688 - Step 5: Solve for x
x = 18,379,828,991,103,688/145,672,337.70 - Step 6: Final answer
x = 126,172,403.64
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.