Finding the Fourth Proportional to 27,879,906.36, 38,475,131.58 and 15,657,025.80
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Solution
The fourth proportional to 27,879,906.36, 38,475,131.58 and 15,657,025.80 is: 21,607,179.02
Step by Step Solution
- Step 1: Write the proportion equation
27,879,906.36 : 38,475,131.58 = 15,657,025.80 : x - Step 2: Convert to fraction form
27,879,906.36/38,475,131.58 = 15,657,025.80/x - Step 3: Cross multiply
27,879,906.36x = 38,475,131.58 × 15,657,025.80 - Step 4: Simplify right side
27,879,906.36x = 602,406,127,806,454.75 - Step 5: Solve for x
x = 602,406,127,806,454.75/27,879,906.36 - Step 6: Final answer
x = 21,607,179.02
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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.