Finding the Fourth Proportional to 6,240,830.90, 9,361,246.35 and 5,643,634.10
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Solution
The fourth proportional to 6,240,830.90, 9,361,246.35 and 5,643,634.10 is: 8,465,451.15
Step by Step Solution
- Step 1: Write the proportion equation
6,240,830.90 : 9,361,246.35 = 5,643,634.10 : x - Step 2: Convert to fraction form
6,240,830.90/9,361,246.35 = 5,643,634.10/x - Step 3: Cross multiply
6,240,830.90x = 9,361,246.35 × 5,643,634.10 - Step 4: Simplify right side
6,240,830.90x = 52,831,449,119,360.53 - Step 5: Solve for x
x = 52,831,449,119,360.53/6,240,830.90 - Step 6: Final answer
x = 8,465,451.15
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Double scale
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Similar ratio
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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.