Finding the Fourth Proportional to 66,809,781.45, 100,214,672.18 and 56,048,101.20
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Solution
The fourth proportional to 66,809,781.45, 100,214,672.18 and 56,048,101.20 is: 84,072,151.80
Step by Step Solution
- Step 1: Write the proportion equation
66,809,781.45 : 100,214,672.18 = 56,048,101.20 : x - Step 2: Convert to fraction form
66,809,781.45/100,214,672.18 = 56,048,101.20/x - Step 3: Cross multiply
66,809,781.45x = 100,214,672.18 × 56,048,101.20 - Step 4: Simplify right side
66,809,781.45x = 5,616,842,087,789,224 - Step 5: Solve for x
x = 5,616,842,087,789,224/66,809,781.45 - Step 6: Final answer
x = 84,072,151.80
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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.