Finding the Fourth Proportional to 38,267,279.64, 52,808,830.74 and 20,863,639.08
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Solution
The fourth proportional to 38,267,279.64, 52,808,830.74 and 20,863,639.08 is: 28,791,813.66
Step by Step Solution
- Step 1: Write the proportion equation
38,267,279.64 : 52,808,830.74 = 20,863,639.08 : x - Step 2: Convert to fraction form
38,267,279.64/52,808,830.74 = 20,863,639.08/x - Step 3: Cross multiply
38,267,279.64x = 52,808,830.74 × 20,863,639.08 - Step 4: Simplify right side
38,267,279.64x = 1,101,784,384,796,169.25 - Step 5: Solve for x
x = 1,101,784,384,796,169.25/38,267,279.64 - Step 6: Final answer
x = 28,791,813.66
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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.