Finding the Fourth Proportional to 19,207,811.20, 26,509,066.56 and 11,060,636.80
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Solution
The fourth proportional to 19,207,811.20, 26,509,066.56 and 11,060,636.80 is: 15,264,995.79
Step by Step Solution
- Step 1: Write the proportion equation
19,207,811.20 : 26,509,066.56 = 11,060,636.80 : x - Step 2: Convert to fraction form
19,207,811.20/26,509,066.56 = 11,060,636.80/x - Step 3: Cross multiply
19,207,811.20x = 26,509,066.56 × 11,060,636.80 - Step 4: Simplify right side
19,207,811.20x = 293,207,157,127,185.44 - Step 5: Solve for x
x = 293,207,157,127,185.44/19,207,811.20 - Step 6: Final answer
x = 15,264,995.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.