Finding the Fourth Proportional to 65,207,856.80, 97,811,785.20 and 39,698,688.80
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Solution
The fourth proportional to 65,207,856.80, 97,811,785.20 and 39,698,688.80 is: 59,548,033.20
Step by Step Solution
- Step 1: Write the proportion equation
65,207,856.80 : 97,811,785.20 = 39,698,688.80 : x - Step 2: Convert to fraction form
65,207,856.80/97,811,785.20 = 39,698,688.80/x - Step 3: Cross multiply
65,207,856.80x = 97,811,785.20 × 39,698,688.80 - Step 4: Simplify right side
65,207,856.80x = 3,882,999,621,627,245.50 - Step 5: Solve for x
x = 3,882,999,621,627,245.50/65,207,856.80 - Step 6: Final answer
x = 59,548,033.20
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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.