Finding the Fourth Proportional to 85,339,631.18, 117,768,691.17 and 46,181,407.91
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Solution
The fourth proportional to 85,339,631.18, 117,768,691.17 and 46,181,407.91 is: 63,730,342.99
Step by Step Solution
- Step 1: Write the proportion equation
85,339,631.18 : 117,768,691.17 = 46,181,407.91 : x - Step 2: Convert to fraction form
85,339,631.18/117,768,691.17 = 46,181,407.91/x - Step 3: Cross multiply
85,339,631.18x = 117,768,691.17 × 46,181,407.91 - Step 4: Simplify right side
85,339,631.18x = 5,438,723,965,359,742 - Step 5: Solve for x
x = 5,438,723,965,359,742/85,339,631.18 - Step 6: Final answer
x = 63,730,342.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.