Finding the Fourth Proportional to 31,053,209.99, 42,853,605.46 and 18,008,214.26
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Solution
The fourth proportional to 31,053,209.99, 42,853,605.46 and 18,008,214.26 is: 24,851,437.55
Step by Step Solution
- Step 1: Write the proportion equation
31,053,209.99 : 42,853,605.46 = 18,008,214.26 : x - Step 2: Convert to fraction form
31,053,209.99/42,853,605.46 = 18,008,214.26/x - Step 3: Cross multiply
31,053,209.99x = 42,853,605.46 × 18,008,214.26 - Step 4: Simplify right side
31,053,209.99x = 771,716,908,677,897.25 - Step 5: Solve for x
x = 771,716,908,677,897.25/31,053,209.99 - Step 6: Final answer
x = 24,851,437.55
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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.