Finding the Fourth Proportional to 134,859,103.74, 186,105,557.07 and 72,979,443.99
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Solution
The fourth proportional to 134,859,103.74, 186,105,557.07 and 72,979,443.99 is: 100,711,629.41
Step by Step Solution
- Step 1: Write the proportion equation
134,859,103.74 : 186,105,557.07 = 72,979,443.99 : x - Step 2: Convert to fraction form
134,859,103.74/186,105,557.07 = 72,979,443.99/x - Step 3: Cross multiply
134,859,103.74x = 186,105,557.07 × 72,979,443.99 - Step 4: Simplify right side
134,859,103.74x = 13,581,880,078,417,812 - Step 5: Solve for x
x = 13,581,880,078,417,812/134,859,103.74 - Step 6: Final answer
x = 100,711,629.41
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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.