Finding the Fourth Proportional to 257,178,049.41, 354,863,637.45 and 151,420,586.94
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Solution
The fourth proportional to 257,178,049.41, 354,863,637.45 and 151,420,586.94 is: 208,935,639.68
Step by Step Solution
- Step 1: Write the proportion equation
257,178,049.41 : 354,863,637.45 = 151,420,586.94 : x - Step 2: Convert to fraction form
257,178,049.41/354,863,637.45 = 151,420,586.94/x - Step 3: Cross multiply
257,178,049.41x = 354,863,637.45 × 151,420,586.94 - Step 4: Simplify right side
257,178,049.41x = 53,733,660,266,342,360 - Step 5: Solve for x
x = 53,733,660,266,342,360/257,178,049.41 - Step 6: Final answer
x = 208,935,639.68
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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.