Finding the Fourth Proportional to 20,623,867.68, 30,935,814.48 and 7,841,419.68
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Solution
The fourth proportional to 20,623,867.68, 30,935,814.48 and 7,841,419.68 is: 11,762,134.45
Step by Step Solution
- Step 1: Write the proportion equation
20,623,867.68 : 30,935,814.48 = 7,841,419.68 : x - Step 2: Convert to fraction form
20,623,867.68/30,935,814.48 = 7,841,419.68/x - Step 3: Cross multiply
20,623,867.68x = 30,935,814.48 × 7,841,419.68 - Step 4: Simplify right side
20,623,867.68x = 242,580,704,480,300.97 - Step 5: Solve for x
x = 242,580,704,480,300.97/20,623,867.68 - Step 6: Final answer
x = 11,762,134.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.