Finding the Fourth Proportional to 12,705,707.97, 19,062,119.48 and 5,137,988.13
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Solution
The fourth proportional to 12,705,707.97, 19,062,119.48 and 5,137,988.13 is: 7,708,420.80
Step by Step Solution
- Step 1: Write the proportion equation
12,705,707.97 : 19,062,119.48 = 5,137,988.13 : x - Step 2: Convert to fraction form
12,705,707.97/19,062,119.48 = 5,137,988.13/x - Step 3: Cross multiply
12,705,707.97x = 19,062,119.48 × 5,137,988.13 - Step 4: Simplify right side
12,705,707.97x = 97,940,943,595,191.84 - Step 5: Solve for x
x = 97,940,943,595,191.84/12,705,707.97 - Step 6: Final answer
x = 7,708,420.80
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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.