Finding the Fourth Proportional to 65,185,487.80, 97,778,231.70 and 38,311,631.80
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Solution
The fourth proportional to 65,185,487.80, 97,778,231.70 and 38,311,631.80 is: 57,467,447.70
Step by Step Solution
- Step 1: Write the proportion equation
65,185,487.80 : 97,778,231.70 = 38,311,631.80 : x - Step 2: Convert to fraction form
65,185,487.80/97,778,231.70 = 38,311,631.80/x - Step 3: Cross multiply
65,185,487.80x = 97,778,231.70 × 38,311,631.80 - Step 4: Simplify right side
65,185,487.80x = 3,746,043,610,945,488 - Step 5: Solve for x
x = 3,746,043,610,945,488/65,185,487.80 - Step 6: Final answer
x = 57,467,447.70
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1.5x scale
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.