Finding the Fourth Proportional to 159,966,344.81, 220,691,056.84 and 92,974,171.75
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Solution
The fourth proportional to 159,966,344.81, 220,691,056.84 and 92,974,171.75 is: 128,268,031.91
Step by Step Solution
- Step 1: Write the proportion equation
159,966,344.81 : 220,691,056.84 = 92,974,171.75 : x - Step 2: Convert to fraction form
159,966,344.81/220,691,056.84 = 92,974,171.75/x - Step 3: Cross multiply
159,966,344.81x = 220,691,056.84 × 92,974,171.75 - Step 4: Simplify right side
159,966,344.81x = 20,518,568,221,547,012 - Step 5: Solve for x
x = 20,518,568,221,547,012/159,966,344.81 - Step 6: Final answer
x = 128,268,031.91
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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.