Finding the Fourth Proportional to 20,223,585.24, 27,908,646.30 and 11,056,228.44
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Solution
The fourth proportional to 20,223,585.24, 27,908,646.30 and 11,056,228.44 is: 15,257,649.19
Step by Step Solution
- Step 1: Write the proportion equation
20,223,585.24 : 27,908,646.30 = 11,056,228.44 : x - Step 2: Convert to fraction form
20,223,585.24/27,908,646.30 = 11,056,228.44/x - Step 3: Cross multiply
20,223,585.24x = 27,908,646.30 × 11,056,228.44 - Step 4: Simplify right side
20,223,585.24x = 308,564,368,943,960.75 - Step 5: Solve for x
x = 308,564,368,943,960.75/20,223,585.24 - Step 6: Final answer
x = 15,257,649.19
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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.