Finding the Fourth Proportional to 75,219,609.08, 103,817,947.16 and 48,790,716.01
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Solution
The fourth proportional to 75,219,609.08, 103,817,947.16 and 48,790,716.01 is: 67,340,844.21
Step by Step Solution
- Step 1: Write the proportion equation
75,219,609.08 : 103,817,947.16 = 48,790,716.01 : x - Step 2: Convert to fraction form
75,219,609.08/103,817,947.16 = 48,790,716.01/x - Step 3: Cross multiply
75,219,609.08x = 103,817,947.16 × 48,790,716.01 - Step 4: Simplify right side
75,219,609.08x = 5,065,351,976,487,178 - Step 5: Solve for x
x = 5,065,351,976,487,178/75,219,609.08 - Step 6: Final answer
x = 67,340,844.21
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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.