Finding the Fourth Proportional to 29,968,486.72, 41,346,387.84 and 19,509,740.80
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Solution
The fourth proportional to 29,968,486.72, 41,346,387.84 and 19,509,740.80 is: 26,916,851.60
Step by Step Solution
- Step 1: Write the proportion equation
29,968,486.72 : 41,346,387.84 = 19,509,740.80 : x - Step 2: Convert to fraction form
29,968,486.72/41,346,387.84 = 19,509,740.80/x - Step 3: Cross multiply
29,968,486.72x = 41,346,387.84 × 19,509,740.80 - Step 4: Simplify right side
29,968,486.72x = 806,657,309,774,672 - Step 5: Solve for x
x = 806,657,309,774,672/29,968,486.72 - Step 6: Final answer
x = 26,916,851.60
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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.