Finding the Fourth Proportional to 39,403,149.84, 54,375,818.40 and 21,999,762
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Solution
The fourth proportional to 39,403,149.84, 54,375,818.40 and 21,999,762 is: 30,359,376.55
Step by Step Solution
- Step 1: Write the proportion equation
39,403,149.84 : 54,375,818.40 = 21,999,762 : x - Step 2: Convert to fraction form
39,403,149.84/54,375,818.40 = 21,999,762/x - Step 3: Cross multiply
39,403,149.84x = 54,375,818.40 × 21,999,762 - Step 4: Simplify right side
39,403,149.84x = 1,196,255,063,355,220.75 - Step 5: Solve for x
x = 1,196,255,063,355,220.75/39,403,149.84 - Step 6: Final answer
x = 30,359,376.55
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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.