Finding the Fourth Proportional to 20,952,937.88, 28,914,461.66 and 11,660,359.70
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Solution
The fourth proportional to 20,952,937.88, 28,914,461.66 and 11,660,359.70 is: 16,090,966.59
Step by Step Solution
- Step 1: Write the proportion equation
20,952,937.88 : 28,914,461.66 = 11,660,359.70 : x - Step 2: Convert to fraction form
20,952,937.88/28,914,461.66 = 11,660,359.70/x - Step 3: Cross multiply
20,952,937.88x = 28,914,461.66 × 11,660,359.70 - Step 4: Simplify right side
20,952,937.88x = 337,153,023,284,585 - Step 5: Solve for x
x = 337,153,023,284,585/20,952,937.88 - Step 6: Final answer
x = 16,090,966.59
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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.