Finding the Fourth Proportional to 159,473,549.75, 220,073,646.96 and 86,134,691.75
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Solution
The fourth proportional to 159,473,549.75, 220,073,646.96 and 86,134,691.75 is: 118,865,954.71
Step by Step Solution
- Step 1: Write the proportion equation
159,473,549.75 : 220,073,646.96 = 86,134,691.75 : x - Step 2: Convert to fraction form
159,473,549.75/220,073,646.96 = 86,134,691.75/x - Step 3: Cross multiply
159,473,549.75x = 220,073,646.96 × 86,134,691.75 - Step 4: Simplify right side
159,473,549.75x = 18,955,975,741,882,220 - Step 5: Solve for x
x = 18,955,975,741,882,220/159,473,549.75 - Step 6: Final answer
x = 118,865,954.71
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1.5x scale
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.