Finding the Fourth Proportional to 426,919,198.32, 640,372,035.24 and 135,782,118
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Solution
The fourth proportional to 426,919,198.32, 640,372,035.24 and 135,782,118 is: 203,671,026.26
Step by Step Solution
- Step 1: Write the proportion equation
426,919,198.32 : 640,372,035.24 = 135,782,118 : x - Step 2: Convert to fraction form
426,919,198.32/640,372,035.24 = 135,782,118/x - Step 3: Cross multiply
426,919,198.32x = 640,372,035.24 × 135,782,118 - Step 4: Simplify right side
426,919,198.32x = 86,951,071,252,857,840 - Step 5: Solve for x
x = 86,951,071,252,857,840/426,919,198.32 - Step 6: Final answer
x = 203,671,026.26
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.