Finding the Fourth Proportional to 297,917,472.56, 411,183,032.58 and 197,268,385.82
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Solution
The fourth proportional to 297,917,472.56, 411,183,032.58 and 197,268,385.82 is: 272,268,062.75
Step by Step Solution
- Step 1: Write the proportion equation
297,917,472.56 : 411,183,032.58 = 197,268,385.82 : x - Step 2: Convert to fraction form
297,917,472.56/411,183,032.58 = 197,268,385.82/x - Step 3: Cross multiply
297,917,472.56x = 411,183,032.58 × 197,268,385.82 - Step 4: Simplify right side
297,917,472.56x = 81,113,413,111,573,152 - Step 5: Solve for x
x = 81,113,413,111,573,152/297,917,472.56 - Step 6: Final answer
x = 272,268,062.75
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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.