Finding the Fourth Proportional to 70,771,361.60, 97,661,337.60 and 39,411,028.24
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Solution
The fourth proportional to 70,771,361.60, 97,661,337.60 and 39,411,028.24 is: 54,385,469.59
Step by Step Solution
- Step 1: Write the proportion equation
70,771,361.60 : 97,661,337.60 = 39,411,028.24 : x - Step 2: Convert to fraction form
70,771,361.60/97,661,337.60 = 39,411,028.24/x - Step 3: Cross multiply
70,771,361.60x = 97,661,337.60 × 39,411,028.24 - Step 4: Simplify right side
70,771,361.60x = 3,848,933,734,109,774 - Step 5: Solve for x
x = 3,848,933,734,109,774/70,771,361.60 - Step 6: Final answer
x = 54,385,469.59
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1.5x scale
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.