Finding the Fourth Proportional to 21,249,950.70, 31,821,781.95 and 16,998,422.70
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Solution
The fourth proportional to 21,249,950.70, 31,821,781.95 and 16,998,422.70 is: 25,455,122.62
Step by Step Solution
- Step 1: Write the proportion equation
21,249,950.70 : 31,821,781.95 = 16,998,422.70 : x - Step 2: Convert to fraction form
21,249,950.70/31,821,781.95 = 16,998,422.70/x - Step 3: Cross multiply
21,249,950.70x = 31,821,781.95 × 16,998,422.70 - Step 4: Simplify right side
21,249,950.70x = 540,920,100,653,330.25 - Step 5: Solve for x
x = 540,920,100,653,330.25/21,249,950.70 - Step 6: Final answer
x = 25,455,122.62
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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.