Finding the Fourth Proportional to 272,815,762.12, 409,514,956.98 and 117,446,471.08
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Solution
The fourth proportional to 272,815,762.12, 409,514,956.98 and 117,446,471.08 is: 176,295,116.45
Step by Step Solution
- Step 1: Write the proportion equation
272,815,762.12 : 409,514,956.98 = 117,446,471.08 : x - Step 2: Convert to fraction form
272,815,762.12/409,514,956.98 = 117,446,471.08/x - Step 3: Cross multiply
272,815,762.12x = 409,514,956.98 × 117,446,471.08 - Step 4: Simplify right side
272,815,762.12x = 48,096,086,551,779,016 - Step 5: Solve for x
x = 48,096,086,551,779,016/272,815,762.12 - Step 6: Final answer
x = 176,295,116.45
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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.