Finding the Fourth Proportional to 19,201,445.99, 26,475,354.38 and 15,518,975.39
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Solution
The fourth proportional to 19,201,445.99, 26,475,354.38 and 15,518,975.39 is: 21,397,887.08
Step by Step Solution
- Step 1: Write the proportion equation
19,201,445.99 : 26,475,354.38 = 15,518,975.39 : x - Step 2: Convert to fraction form
19,201,445.99/26,475,354.38 = 15,518,975.39/x - Step 3: Cross multiply
19,201,445.99x = 26,475,354.38 × 15,518,975.39 - Step 4: Simplify right side
19,201,445.99x = 410,870,372,983,157.69 - Step 5: Solve for x
x = 410,870,372,983,157.69/19,201,445.99 - Step 6: Final answer
x = 21,397,887.08
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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.