Finding the Fourth Proportional to 70,588,994.60, 97,415,175.30 and 39,228,365.48
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Solution
The fourth proportional to 70,588,994.60, 97,415,175.30 and 39,228,365.48 is: 54,136,457.41
Step by Step Solution
- Step 1: Write the proportion equation
70,588,994.60 : 97,415,175.30 = 39,228,365.48 : x - Step 2: Convert to fraction form
70,588,994.60/97,415,175.30 = 39,228,365.48/x - Step 3: Cross multiply
70,588,994.60x = 97,415,175.30 × 39,228,365.48 - Step 4: Simplify right side
70,588,994.60x = 3,821,438,099,966,668 - Step 5: Solve for x
x = 3,821,438,099,966,668/70,588,994.60 - Step 6: Final answer
x = 54,136,457.41
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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.