Finding the Fourth Proportional to 5,595,603.12, 7,721,932.68 and 3,181,155.12
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Solution
The fourth proportional to 5,595,603.12, 7,721,932.68 and 3,181,155.12 is: 4,389,994.28
Step by Step Solution
- Step 1: Write the proportion equation
5,595,603.12 : 7,721,932.68 = 3,181,155.12 : x - Step 2: Convert to fraction form
5,595,603.12/7,721,932.68 = 3,181,155.12/x - Step 3: Cross multiply
5,595,603.12x = 7,721,932.68 × 3,181,155.12 - Step 4: Simplify right side
5,595,603.12x = 24,564,665,681,277.32 - Step 5: Solve for x
x = 24,564,665,681,277.32/5,595,603.12 - Step 6: Final answer
x = 4,389,994.28
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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.