Finding the Fourth Proportional to 153,879,066.24, 212,346,733.95 and 84,263,247.60
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Solution
The fourth proportional to 153,879,066.24, 212,346,733.95 and 84,263,247.60 is: 116,279,789.43
Step by Step Solution
- Step 1: Write the proportion equation
153,879,066.24 : 212,346,733.95 = 84,263,247.60 : x - Step 2: Convert to fraction form
153,879,066.24/212,346,733.95 = 84,263,247.60/x - Step 3: Cross multiply
153,879,066.24x = 212,346,733.95 × 84,263,247.60 - Step 4: Simplify right side
153,879,066.24x = 17,893,025,419,880,174 - Step 5: Solve for x
x = 17,893,025,419,880,174/153,879,066.24 - Step 6: Final answer
x = 116,279,789.43
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.