Finding the Fourth Proportional to 159,769,381.20, 239,488,734.60 and 86,832,056.40
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Solution
The fourth proportional to 159,769,381.20, 239,488,734.60 and 86,832,056.40 is: 130,158,226.52
Step by Step Solution
- Step 1: Write the proportion equation
159,769,381.20 : 239,488,734.60 = 86,832,056.40 : x - Step 2: Convert to fraction form
159,769,381.20/239,488,734.60 = 86,832,056.40/x - Step 3: Cross multiply
159,769,381.20x = 239,488,734.60 × 86,832,056.40 - Step 4: Simplify right side
159,769,381.20x = 20,795,299,309,951,832 - Step 5: Solve for x
x = 20,795,299,309,951,832/159,769,381.20 - Step 6: Final answer
x = 130,158,226.52
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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.