Finding the Fourth Proportional to 18,403,800.30, 27,605,700.45 and 4,941,989.10
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Solution
The fourth proportional to 18,403,800.30, 27,605,700.45 and 4,941,989.10 is: 7,412,983.65
Step by Step Solution
- Step 1: Write the proportion equation
18,403,800.30 : 27,605,700.45 = 4,941,989.10 : x - Step 2: Convert to fraction form
18,403,800.30/27,605,700.45 = 4,941,989.10/x - Step 3: Cross multiply
18,403,800.30x = 27,605,700.45 × 4,941,989.10 - Step 4: Simplify right side
18,403,800.30x = 136,427,070,721,765.08 - Step 5: Solve for x
x = 136,427,070,721,765.08/18,403,800.30 - Step 6: Final answer
x = 7,412,983.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.