Finding the Fourth Proportional to 220,483,246.20, 330,724,869.30 and 154,726,279.80
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Solution
The fourth proportional to 220,483,246.20, 330,724,869.30 and 154,726,279.80 is: 232,089,419.70
Step by Step Solution
- Step 1: Write the proportion equation
220,483,246.20 : 330,724,869.30 = 154,726,279.80 : x - Step 2: Convert to fraction form
220,483,246.20/330,724,869.30 = 154,726,279.80/x - Step 3: Cross multiply
220,483,246.20x = 330,724,869.30 × 154,726,279.80 - Step 4: Simplify right side
220,483,246.20x = 51,171,828,664,130,232 - Step 5: Solve for x
x = 51,171,828,664,130,232/220,483,246.20 - Step 6: Final answer
x = 232,089,419.70
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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.