Finding the Fourth Proportional to 70,734,744.72, 97,613,932.68 and 39,372,117.39
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Solution
The fourth proportional to 70,734,744.72, 97,613,932.68 and 39,372,117.39 is: 54,333,513.63
Step by Step Solution
- Step 1: Write the proportion equation
70,734,744.72 : 97,613,932.68 = 39,372,117.39 : x - Step 2: Convert to fraction form
70,734,744.72/97,613,932.68 = 39,372,117.39/x - Step 3: Cross multiply
70,734,744.72x = 97,613,932.68 × 39,372,117.39 - Step 4: Simplify right side
70,734,744.72x = 3,843,267,216,376,517.50 - Step 5: Solve for x
x = 3,843,267,216,376,517.50/70,734,744.72 - Step 6: Final answer
x = 54,333,513.63
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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.