Finding the Fourth Proportional to 177,643,198.72, 245,215,263.36 and 115,778,586.88
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Solution
The fourth proportional to 177,643,198.72, 245,215,263.36 and 115,778,586.88 is: 159,818,540.07
Step by Step Solution
- Step 1: Write the proportion equation
177,643,198.72 : 245,215,263.36 = 115,778,586.88 : x - Step 2: Convert to fraction form
177,643,198.72/245,215,263.36 = 115,778,586.88/x - Step 3: Cross multiply
177,643,198.72x = 245,215,263.36 × 115,778,586.88 - Step 4: Simplify right side
177,643,198.72x = 28,390,676,673,227,840 - Step 5: Solve for x
x = 28,390,676,673,227,840/177,643,198.72 - Step 6: Final answer
x = 159,818,540.07
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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.