Finding the Fourth Proportional to 38,351,840.96, 52,925,226 and 20,948,197.28
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Solution
The fourth proportional to 38,351,840.96, 52,925,226 and 20,948,197.28 is: 28,908,340.45
Step by Step Solution
- Step 1: Write the proportion equation
38,351,840.96 : 52,925,226 = 20,948,197.28 : x - Step 2: Convert to fraction form
38,351,840.96/52,925,226 = 20,948,197.28/x - Step 3: Cross multiply
38,351,840.96x = 52,925,226 × 20,948,197.28 - Step 4: Simplify right side
38,351,840.96x = 1,108,688,075,336,585.38 - Step 5: Solve for x
x = 1,108,688,075,336,585.38/38,351,840.96 - Step 6: Final answer
x = 28,908,340.45
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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.