Finding the Fourth Proportional to 28,034,317.17, 38,687,284.13 and 15,644,278.53
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Solution
The fourth proportional to 28,034,317.17, 38,687,284.13 and 15,644,278.53 is: 21,589,063.32
Step by Step Solution
- Step 1: Write the proportion equation
28,034,317.17 : 38,687,284.13 = 15,644,278.53 : x - Step 2: Convert to fraction form
28,034,317.17/38,687,284.13 = 15,644,278.53/x - Step 3: Cross multiply
28,034,317.17x = 38,687,284.13 × 15,644,278.53 - Step 4: Simplify right side
28,034,317.17x = 605,234,648,420,747.25 - Step 5: Solve for x
x = 605,234,648,420,747.25/28,034,317.17 - Step 6: Final answer
x = 21,589,063.32
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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.