Finding the Fourth Proportional to 83,984,812.40, 125,958,313.20 and 30,132,124.40
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Solution
The fourth proportional to 83,984,812.40, 125,958,313.20 and 30,132,124.40 is: 45,191,403.71
Step by Step Solution
- Step 1: Write the proportion equation
83,984,812.40 : 125,958,313.20 = 30,132,124.40 : x - Step 2: Convert to fraction form
83,984,812.40/125,958,313.20 = 30,132,124.40/x - Step 3: Cross multiply
83,984,812.40x = 125,958,313.20 × 30,132,124.40 - Step 4: Simplify right side
83,984,812.40x = 3,795,391,562,556,562 - Step 5: Solve for x
x = 3,795,391,562,556,562/83,984,812.40 - Step 6: Final answer
x = 45,191,403.71
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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.