Finding the Fourth Proportional to 86,528,241.41, 119,489,913.65 and 55,642,073.09
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Solution
The fourth proportional to 86,528,241.41, 119,489,913.65 and 55,642,073.09 is: 76,838,109.74
Step by Step Solution
- Step 1: Write the proportion equation
86,528,241.41 : 119,489,913.65 = 55,642,073.09 : x - Step 2: Convert to fraction form
86,528,241.41/119,489,913.65 = 55,642,073.09/x - Step 3: Cross multiply
86,528,241.41x = 119,489,913.65 × 55,642,073.09 - Step 4: Simplify right side
86,528,241.41x = 6,648,666,508,372,745 - Step 5: Solve for x
x = 6,648,666,508,372,745/86,528,241.41 - Step 6: Final answer
x = 76,838,109.74
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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.