Finding the Fourth Proportional to 65,207,885.80, 97,811,828.70 and 39,698,717.80
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Solution
The fourth proportional to 65,207,885.80, 97,811,828.70 and 39,698,717.80 is: 59,548,076.70
Step by Step Solution
- Step 1: Write the proportion equation
65,207,885.80 : 97,811,828.70 = 39,698,717.80 : x - Step 2: Convert to fraction form
65,207,885.80/97,811,828.70 = 39,698,717.80/x - Step 3: Cross multiply
65,207,885.80x = 97,811,828.70 × 39,698,717.80 - Step 4: Simplify right side
65,207,885.80x = 3,883,004,185,063,240.50 - Step 5: Solve for x
x = 3,883,004,185,063,240.50/65,207,885.80 - Step 6: Final answer
x = 59,548,076.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.