Finding the Fourth Proportional to 283,629,318.11, 391,408,454.76 and 153,249,126.11
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Solution
The fourth proportional to 283,629,318.11, 391,408,454.76 and 153,249,126.11 is: 211,483,791.75
Step by Step Solution
- Step 1: Write the proportion equation
283,629,318.11 : 391,408,454.76 = 153,249,126.11 : x - Step 2: Convert to fraction form
283,629,318.11/391,408,454.76 = 153,249,126.11/x - Step 3: Cross multiply
283,629,318.11x = 391,408,454.76 × 153,249,126.11 - Step 4: Simplify right side
283,629,318.11x = 59,983,003,644,035,472 - Step 5: Solve for x
x = 59,983,003,644,035,472/283,629,318.11 - Step 6: Final answer
x = 211,483,791.75
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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.