Finding the Fourth Proportional to 38,211,795.09, 52,730,885.03 and 20,807,758.53
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Solution
The fourth proportional to 38,211,795.09, 52,730,885.03 and 20,807,758.53 is: 28,713,948.67
Step by Step Solution
- Step 1: Write the proportion equation
38,211,795.09 : 52,730,885.03 = 20,807,758.53 : x - Step 2: Convert to fraction form
38,211,795.09/52,730,885.03 = 20,807,758.53/x - Step 3: Cross multiply
38,211,795.09x = 52,730,885.03 × 20,807,758.53 - Step 4: Simplify right side
38,211,795.09x = 1,097,211,522,673,393 - Step 5: Solve for x
x = 1,097,211,522,673,393/38,211,795.09 - Step 6: Final answer
x = 28,713,948.67
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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.