Finding the Fourth Proportional to 70,986,132.75, 106,261,005.42 and 60,513,964.68
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Solution
The fourth proportional to 70,986,132.75, 106,261,005.42 and 60,513,964.68 is: 90,584,942.15
Step by Step Solution
- Step 1: Write the proportion equation
70,986,132.75 : 106,261,005.42 = 60,513,964.68 : x - Step 2: Convert to fraction form
70,986,132.75/106,261,005.42 = 60,513,964.68/x - Step 3: Cross multiply
70,986,132.75x = 106,261,005.42 × 60,513,964.68 - Step 4: Simplify right side
70,986,132.75x = 6,430,274,728,847,169 - Step 5: Solve for x
x = 6,430,274,728,847,169/70,986,132.75 - Step 6: Final answer
x = 90,584,942.15
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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.