Finding the Fourth Proportional to 197,427,343.58, 272,733,527.68 and 157,682,690.44
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Solution
The fourth proportional to 197,427,343.58, 272,733,527.68 and 157,682,690.44 is: 217,828,775.07
Step by Step Solution
- Step 1: Write the proportion equation
197,427,343.58 : 272,733,527.68 = 157,682,690.44 : x - Step 2: Convert to fraction form
197,427,343.58/272,733,527.68 = 157,682,690.44/x - Step 3: Cross multiply
197,427,343.58x = 272,733,527.68 × 157,682,690.44 - Step 4: Simplify right side
197,427,343.58x = 43,005,356,417,774,608 - Step 5: Solve for x
x = 43,005,356,417,774,608/197,427,343.58 - Step 6: Final answer
x = 217,828,775.07
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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.