Finding the Fourth Proportional to 207,168,015.80, 310,752,023.70 and 126,546,447.80
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Solution
The fourth proportional to 207,168,015.80, 310,752,023.70 and 126,546,447.80 is: 189,819,671.70
Step by Step Solution
- Step 1: Write the proportion equation
207,168,015.80 : 310,752,023.70 = 126,546,447.80 : x - Step 2: Convert to fraction form
207,168,015.80/310,752,023.70 = 126,546,447.80/x - Step 3: Cross multiply
207,168,015.80x = 310,752,023.70 × 126,546,447.80 - Step 4: Simplify right side
207,168,015.80x = 39,324,564,745,896,408 - Step 5: Solve for x
x = 39,324,564,745,896,408/207,168,015.80 - Step 6: Final answer
x = 189,819,671.70
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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.