Finding the Fourth Proportional to 27,911,036.74, 38,517,685.20 and 15,352,587.68
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Solution
The fourth proportional to 27,911,036.74, 38,517,685.20 and 15,352,587.68 is: 21,186,821.00
Step by Step Solution
- Step 1: Write the proportion equation
27,911,036.74 : 38,517,685.20 = 15,352,587.68 : x - Step 2: Convert to fraction form
27,911,036.74/38,517,685.20 = 15,352,587.68/x - Step 3: Cross multiply
27,911,036.74x = 38,517,685.20 × 15,352,587.68 - Step 4: Simplify right side
27,911,036.74x = 591,346,139,186,875.38 - Step 5: Solve for x
x = 591,346,139,186,875.38/27,911,036.74 - Step 6: Final answer
x = 21,186,821.00
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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.