Finding the Fourth Proportional to 210,345,129.80, 315,517,694.70 and 97,098,921.80
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Solution
The fourth proportional to 210,345,129.80, 315,517,694.70 and 97,098,921.80 is: 145,648,382.70
Step by Step Solution
- Step 1: Write the proportion equation
210,345,129.80 : 315,517,694.70 = 97,098,921.80 : x - Step 2: Convert to fraction form
210,345,129.80/315,517,694.70 = 97,098,921.80/x - Step 3: Cross multiply
210,345,129.80x = 315,517,694.70 × 97,098,921.80 - Step 4: Simplify right side
210,345,129.80x = 30,636,427,964,191,572 - Step 5: Solve for x
x = 30,636,427,964,191,572/210,345,129.80 - Step 6: Final answer
x = 145,648,382.70
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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.