Finding the Fourth Proportional to 14,247,656.84, 19,661,783.09 and 7,721,285.96
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Solution
The fourth proportional to 14,247,656.84, 19,661,783.09 and 7,721,285.96 is: 10,655,383.64
Step by Step Solution
- Step 1: Write the proportion equation
14,247,656.84 : 19,661,783.09 = 7,721,285.96 : x - Step 2: Convert to fraction form
14,247,656.84/19,661,783.09 = 7,721,285.96/x - Step 3: Cross multiply
14,247,656.84x = 19,661,783.09 × 7,721,285.96 - Step 4: Simplify right side
14,247,656.84x = 151,814,249,584,467.09 - Step 5: Solve for x
x = 151,814,249,584,467.09/14,247,656.84 - Step 6: Final answer
x = 10,655,383.64
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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.