Finding the Fourth Proportional to 75,357,362.68, 113,015,629.71 and 20,756,962.67
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Solution
The fourth proportional to 75,357,362.68, 113,015,629.71 and 20,756,962.67 is: 31,129,820.94
Step by Step Solution
- Step 1: Write the proportion equation
75,357,362.68 : 113,015,629.71 = 20,756,962.67 : x - Step 2: Convert to fraction form
75,357,362.68/113,015,629.71 = 20,756,962.67/x - Step 3: Cross multiply
75,357,362.68x = 113,015,629.71 × 20,756,962.67 - Step 4: Simplify right side
75,357,362.68x = 2,345,861,206,451,934.50 - Step 5: Solve for x
x = 2,345,861,206,451,934.50/75,357,362.68 - Step 6: Final answer
x = 31,129,820.94
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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.