Finding the Fourth Proportional to 135,191,421.54, 186,564,210.93 and 73,311,743.70
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Solution
The fourth proportional to 135,191,421.54, 186,564,210.93 and 73,311,743.70 is: 101,170,232.99
Step by Step Solution
- Step 1: Write the proportion equation
135,191,421.54 : 186,564,210.93 = 73,311,743.70 : x - Step 2: Convert to fraction form
135,191,421.54/186,564,210.93 = 73,311,743.70/x - Step 3: Cross multiply
135,191,421.54x = 186,564,210.93 × 73,311,743.70 - Step 4: Simplify right side
135,191,421.54x = 13,677,347,615,292,900 - Step 5: Solve for x
x = 13,677,347,615,292,900/135,191,421.54 - Step 6: Final answer
x = 101,170,232.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.