Finding the Fourth Proportional to 28,441,476.42, 39,248,958.04 and 15,388,448.94
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Solution
The fourth proportional to 28,441,476.42, 39,248,958.04 and 15,388,448.94 is: 21,235,908.35
Step by Step Solution
- Step 1: Write the proportion equation
28,441,476.42 : 39,248,958.04 = 15,388,448.94 : x - Step 2: Convert to fraction form
28,441,476.42/39,248,958.04 = 15,388,448.94/x - Step 3: Cross multiply
28,441,476.42x = 39,248,958.04 × 15,388,448.94 - Step 4: Simplify right side
28,441,476.42x = 603,980,586,473,555.38 - Step 5: Solve for x
x = 603,980,586,473,555.38/28,441,476.42 - Step 6: Final answer
x = 21,235,908.35
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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.