Finding the Fourth Proportional to 211,597,332.29, 291,977,877.26 and 117,498,685.25
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Solution
The fourth proportional to 211,597,332.29, 291,977,877.26 and 117,498,685.25 is: 162,133,502.95
Step by Step Solution
- Step 1: Write the proportion equation
211,597,332.29 : 291,977,877.26 = 117,498,685.25 : x - Step 2: Convert to fraction form
211,597,332.29/291,977,877.26 = 117,498,685.25/x - Step 3: Cross multiply
211,597,332.29x = 291,977,877.26 × 117,498,685.25 - Step 4: Simplify right side
211,597,332.29x = 34,307,016,698,969,728 - Step 5: Solve for x
x = 34,307,016,698,969,728/211,597,332.29 - Step 6: Final answer
x = 162,133,502.95
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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.