Finding the Fourth Proportional to 256,018,882.74, 353,306,058.57 and 138,544,212.93
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Solution
The fourth proportional to 256,018,882.74, 353,306,058.57 and 138,544,212.93 is: 191,191,014.05
Step by Step Solution
- Step 1: Write the proportion equation
256,018,882.74 : 353,306,058.57 = 138,544,212.93 : x - Step 2: Convert to fraction form
256,018,882.74/353,306,058.57 = 138,544,212.93/x - Step 3: Cross multiply
256,018,882.74x = 353,306,058.57 × 138,544,212.93 - Step 4: Simplify right side
256,018,882.74x = 48,948,509,807,981,136 - Step 5: Solve for x
x = 48,948,509,807,981,136/256,018,882.74 - Step 6: Final answer
x = 191,191,014.05
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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.