Finding the Fourth Proportional to 217,243,363.40, 325,439,892.30 and 130,724,768.60
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Solution
The fourth proportional to 217,243,363.40, 325,439,892.30 and 130,724,768.60 is: 195,831,319.99
Step by Step Solution
- Step 1: Write the proportion equation
217,243,363.40 : 325,439,892.30 = 130,724,768.60 : x - Step 2: Convert to fraction form
217,243,363.40/325,439,892.30 = 130,724,768.60/x - Step 3: Cross multiply
217,243,363.40x = 325,439,892.30 × 130,724,768.60 - Step 4: Simplify right side
217,243,363.40x = 42,543,054,614,126,424 - Step 5: Solve for x
x = 42,543,054,614,126,424/217,243,363.40 - Step 6: Final answer
x = 195,831,319.99
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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.