Finding the Fourth Proportional to 75,742,473.11, 113,449,295.12 and 46,507,571.55
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Solution
The fourth proportional to 75,742,473.11, 113,449,295.12 and 46,507,571.55 is: 69,660,403.12
Step by Step Solution
- Step 1: Write the proportion equation
75,742,473.11 : 113,449,295.12 = 46,507,571.55 : x - Step 2: Convert to fraction form
75,742,473.11/113,449,295.12 = 46,507,571.55/x - Step 3: Cross multiply
75,742,473.11x = 113,449,295.12 × 46,507,571.55 - Step 4: Simplify right side
75,742,473.11x = 5,276,251,209,857,927 - Step 5: Solve for x
x = 5,276,251,209,857,927/75,742,473.11 - Step 6: Final answer
x = 69,660,403.12
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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.