Finding the Fourth Proportional to 29,011,836.93, 40,036,546.02 and 15,781,128.08
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Solution
The fourth proportional to 29,011,836.93, 40,036,546.02 and 15,781,128.08 is: 21,778,071.55
Step by Step Solution
- Step 1: Write the proportion equation
29,011,836.93 : 40,036,546.02 = 15,781,128.08 : x - Step 2: Convert to fraction form
29,011,836.93/40,036,546.02 = 15,781,128.08/x - Step 3: Cross multiply
29,011,836.93x = 40,036,546.02 × 15,781,128.08 - Step 4: Simplify right side
29,011,836.93x = 631,821,860,555,996.88 - Step 5: Solve for x
x = 631,821,860,555,996.88/29,011,836.93 - Step 6: Final answer
x = 21,778,071.55
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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.