Finding the Fourth Proportional to 87,806,541.20, 131,709,811.80 and 86,126,925.20
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Solution
The fourth proportional to 87,806,541.20, 131,709,811.80 and 86,126,925.20 is: 129,190,387.80
Step by Step Solution
- Step 1: Write the proportion equation
87,806,541.20 : 131,709,811.80 = 86,126,925.20 : x - Step 2: Convert to fraction form
87,806,541.20/131,709,811.80 = 86,126,925.20/x - Step 3: Cross multiply
87,806,541.20x = 131,709,811.80 × 86,126,925.20 - Step 4: Simplify right side
87,806,541.20x = 11,343,761,109,004,678 - Step 5: Solve for x
x = 11,343,761,109,004,678/87,806,541.20 - Step 6: Final answer
x = 129,190,387.80
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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.