Finding the Fourth Proportional to 70,354,958.40, 105,532,437.60 and 58,261,723.20
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Solution
The fourth proportional to 70,354,958.40, 105,532,437.60 and 58,261,723.20 is: 87,392,584.80
Step by Step Solution
- Step 1: Write the proportion equation
70,354,958.40 : 105,532,437.60 = 58,261,723.20 : x - Step 2: Convert to fraction form
70,354,958.40/105,532,437.60 = 58,261,723.20/x - Step 3: Cross multiply
70,354,958.40x = 105,532,437.60 × 58,261,723.20 - Step 4: Simplify right side
70,354,958.40x = 6,148,501,668,072,472 - Step 5: Solve for x
x = 6,148,501,668,072,472/70,354,958.40 - Step 6: Final answer
x = 87,392,584.80
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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.