Finding the Fourth Proportional to 14,292,742.66, 19,724,109.82 and 7,766,372.09
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Solution
The fourth proportional to 14,292,742.66, 19,724,109.82 and 7,766,372.09 is: 10,717,661.38
Step by Step Solution
- Step 1: Write the proportion equation
14,292,742.66 : 19,724,109.82 = 7,766,372.09 : x - Step 2: Convert to fraction form
14,292,742.66/19,724,109.82 = 7,766,372.09/x - Step 3: Cross multiply
14,292,742.66x = 19,724,109.82 × 7,766,372.09 - Step 4: Simplify right side
14,292,742.66x = 153,184,776,036,037.25 - Step 5: Solve for x
x = 153,184,776,036,037.25/14,292,742.66 - Step 6: Final answer
x = 10,717,661.38
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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.