Finding the Fourth Proportional to 71,119,971.60, 106,679,957.40 and 69,986,230.80
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Solution
The fourth proportional to 71,119,971.60, 106,679,957.40 and 69,986,230.80 is: 104,979,346.20
Step by Step Solution
- Step 1: Write the proportion equation
71,119,971.60 : 106,679,957.40 = 69,986,230.80 : x - Step 2: Convert to fraction form
71,119,971.60/106,679,957.40 = 69,986,230.80/x - Step 3: Cross multiply
71,119,971.60x = 106,679,957.40 × 69,986,230.80 - Step 4: Simplify right side
71,119,971.60x = 7,466,128,120,330,568 - Step 5: Solve for x
x = 7,466,128,120,330,568/71,119,971.60 - Step 6: Final answer
x = 104,979,346.20
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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.