Finding the Fourth Proportional to 19,478,629.43, 26,880,494.33 and 10,658,138.62
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Solution
The fourth proportional to 19,478,629.43, 26,880,494.33 and 10,658,138.62 is: 14,708,223.48
Step by Step Solution
- Step 1: Write the proportion equation
19,478,629.43 : 26,880,494.33 = 10,658,138.62 : x - Step 2: Convert to fraction form
19,478,629.43/26,880,494.33 = 10,658,138.62/x - Step 3: Cross multiply
19,478,629.43x = 26,880,494.33 × 10,658,138.62 - Step 4: Simplify right side
19,478,629.43x = 286,496,034,743,264 - Step 5: Solve for x
x = 286,496,034,743,264/19,478,629.43 - Step 6: Final answer
x = 14,708,223.48
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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.