Finding the Fourth Proportional to 13,567,817.44, 18,724,305.60 and 7,688,592.80
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Solution
The fourth proportional to 13,567,817.44, 18,724,305.60 and 7,688,592.80 is: 10,610,664.67
Step by Step Solution
- Step 1: Write the proportion equation
13,567,817.44 : 18,724,305.60 = 7,688,592.80 : x - Step 2: Convert to fraction form
13,567,817.44/18,724,305.60 = 7,688,592.80/x - Step 3: Cross multiply
13,567,817.44x = 18,724,305.60 × 7,688,592.80 - Step 4: Simplify right side
13,567,817.44x = 143,963,561,221,159.69 - Step 5: Solve for x
x = 143,963,561,221,159.69/13,567,817.44 - Step 6: Final answer
x = 10,610,664.67
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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.