Finding the Fourth Proportional to 14,365,590.74, 19,824,933.91 and 7,839,640.57
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Solution
The fourth proportional to 14,365,590.74, 19,824,933.91 and 7,839,640.57 is: 10,818,932.47
Step by Step Solution
- Step 1: Write the proportion equation
14,365,590.74 : 19,824,933.91 = 7,839,640.57 : x - Step 2: Convert to fraction form
14,365,590.74/19,824,933.91 = 7,839,640.57/x - Step 3: Cross multiply
14,365,590.74x = 19,824,933.91 × 7,839,640.57 - Step 4: Simplify right side
14,365,590.74x = 155,420,356,178,404.75 - Step 5: Solve for x
x = 155,420,356,178,404.75/14,365,590.74 - Step 6: Final answer
x = 10,818,932.47
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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.