Finding the Fourth Proportional to 100,519,104, 138,701,253.60 and 56,457,661.92
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Solution
The fourth proportional to 100,519,104, 138,701,253.60 and 56,457,661.92 is: 77,903,086.80
Step by Step Solution
- Step 1: Write the proportion equation
100,519,104 : 138,701,253.60 = 56,457,661.92 : x - Step 2: Convert to fraction form
100,519,104/138,701,253.60 = 56,457,661.92/x - Step 3: Cross multiply
100,519,104x = 138,701,253.60 × 56,457,661.92 - Step 4: Simplify right side
100,519,104x = 7,830,748,483,628,983 - Step 5: Solve for x
x = 7,830,748,483,628,983/100,519,104 - Step 6: Final answer
x = 77,903,086.80
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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.