Finding the Fourth Proportional to 259,815,112.76, 358,544,731.50 and 155,393,182.04
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Solution
The fourth proportional to 259,815,112.76, 358,544,731.50 and 155,393,182.04 is: 214,442,516.99
Step by Step Solution
- Step 1: Write the proportion equation
259,815,112.76 : 358,544,731.50 = 155,393,182.04 : x - Step 2: Convert to fraction form
259,815,112.76/358,544,731.50 = 155,393,182.04/x - Step 3: Cross multiply
259,815,112.76x = 358,544,731.50 × 155,393,182.04 - Step 4: Simplify right side
259,815,112.76x = 55,715,406,731,462,416 - Step 5: Solve for x
x = 55,715,406,731,462,416/259,815,112.76 - Step 6: Final answer
x = 214,442,516.99
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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.