Finding the Fourth Proportional to 7,235,349.76, 9,984,899.65 and 3,972,465.28
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Solution
The fourth proportional to 7,235,349.76, 9,984,899.65 and 3,972,465.28 is: 5,482,066.31
Step by Step Solution
- Step 1: Write the proportion equation
7,235,349.76 : 9,984,899.65 = 3,972,465.28 : x - Step 2: Convert to fraction form
7,235,349.76/9,984,899.65 = 3,972,465.28/x - Step 3: Cross multiply
7,235,349.76x = 9,984,899.65 × 3,972,465.28 - Step 4: Simplify right side
7,235,349.76x = 39,664,667,133,984.66 - Step 5: Solve for x
x = 39,664,667,133,984.66/7,235,349.76 - Step 6: Final answer
x = 5,482,066.31
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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.