Finding the Fourth Proportional to 9,168,135.10, 12,646,757.98 and 5,724,397.42
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Solution
The fourth proportional to 9,168,135.10, 12,646,757.98 and 5,724,397.42 is: 7,896,378.92
Step by Step Solution
- Step 1: Write the proportion equation
9,168,135.10 : 12,646,757.98 = 5,724,397.42 : x - Step 2: Convert to fraction form
9,168,135.10/12,646,757.98 = 5,724,397.42/x - Step 3: Cross multiply
9,168,135.10x = 12,646,757.98 × 5,724,397.42 - Step 4: Simplify right side
9,168,135.10x = 72,395,068,723,454.42 - Step 5: Solve for x
x = 72,395,068,723,454.42/9,168,135.10 - Step 6: Final answer
x = 7,896,378.92
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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.