Finding the Fourth Proportional to 210,345,125.80, 315,517,688.70 and 97,098,917.80
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Solution
The fourth proportional to 210,345,125.80, 315,517,688.70 and 97,098,917.80 is: 145,648,376.70
Step by Step Solution
- Step 1: Write the proportion equation
210,345,125.80 : 315,517,688.70 = 97,098,917.80 : x - Step 2: Convert to fraction form
210,345,125.80/315,517,688.70 = 97,098,917.80/x - Step 3: Cross multiply
210,345,125.80x = 315,517,688.70 × 97,098,917.80 - Step 4: Simplify right side
210,345,125.80x = 30,636,426,119,527,288 - Step 5: Solve for x
x = 30,636,426,119,527,288/210,345,125.80 - Step 6: Final answer
x = 145,648,376.70
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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.