Finding the Fourth Proportional to 6,319,264.38, 8,720,832.11 and 3,705,405.18
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Solution
The fourth proportional to 6,319,264.38, 8,720,832.11 and 3,705,405.18 is: 5,113,604.13
Step by Step Solution
- Step 1: Write the proportion equation
6,319,264.38 : 8,720,832.11 = 3,705,405.18 : x - Step 2: Convert to fraction form
6,319,264.38/8,720,832.11 = 3,705,405.18/x - Step 3: Cross multiply
6,319,264.38x = 8,720,832.11 × 3,705,405.18 - Step 4: Simplify right side
6,319,264.38x = 32,314,216,455,777.31 - Step 5: Solve for x
x = 32,314,216,455,777.31/6,319,264.38 - Step 6: Final answer
x = 5,113,604.13
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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.