Finding the Fourth Proportional to 137,880,313.49, 190,269,107.12 and 75,155,031.09
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Solution
The fourth proportional to 137,880,313.49, 190,269,107.12 and 75,155,031.09 is: 103,710,822.08
Step by Step Solution
- Step 1: Write the proportion equation
137,880,313.49 : 190,269,107.12 = 75,155,031.09 : x - Step 2: Convert to fraction form
137,880,313.49/190,269,107.12 = 75,155,031.09/x - Step 3: Cross multiply
137,880,313.49x = 190,269,107.12 × 75,155,031.09 - Step 4: Simplify right side
137,880,313.49x = 14,299,680,661,258,028 - Step 5: Solve for x
x = 14,299,680,661,258,028/137,880,313.49 - Step 6: Final answer
x = 103,710,822.08
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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.