Finding the Fourth Proportional to 18,486,952.81, 25,512,746.05 and 10,226,872.68
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Solution
The fourth proportional to 18,486,952.81, 25,512,746.05 and 10,226,872.68 is: 14,113,499.84
Step by Step Solution
- Step 1: Write the proportion equation
18,486,952.81 : 25,512,746.05 = 10,226,872.68 : x - Step 2: Convert to fraction form
18,486,952.81/25,512,746.05 = 10,226,872.68/x - Step 3: Cross multiply
18,486,952.81x = 25,512,746.05 × 10,226,872.68 - Step 4: Simplify right side
18,486,952.81x = 260,915,605,487,633.69 - Step 5: Solve for x
x = 260,915,605,487,633.69/18,486,952.81 - Step 6: Final answer
x = 14,113,499.84
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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.