Finding the Fourth Proportional to 14,365,432.76, 19,824,717.93 and 7,839,482.81
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Solution
The fourth proportional to 14,365,432.76, 19,824,717.93 and 7,839,482.81 is: 10,818,715.87
Step by Step Solution
- Step 1: Write the proportion equation
14,365,432.76 : 19,824,717.93 = 7,839,482.81 : x - Step 2: Convert to fraction form
14,365,432.76/19,824,717.93 = 7,839,482.81/x - Step 3: Cross multiply
14,365,432.76x = 19,824,717.93 × 7,839,482.81 - Step 4: Simplify right side
14,365,432.76x = 155,415,535,425,333.78 - Step 5: Solve for x
x = 155,415,535,425,333.78/14,365,432.76 - Step 6: Final answer
x = 10,818,715.87
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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.