Finding the Fourth Proportional to 63,660,396.42, 87,851,347.74 and 34,687,020.42
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Solution
The fourth proportional to 63,660,396.42, 87,851,347.74 and 34,687,020.42 is: 47,868,088.55
Step by Step Solution
- Step 1: Write the proportion equation
63,660,396.42 : 87,851,347.74 = 34,687,020.42 : x - Step 2: Convert to fraction form
63,660,396.42/87,851,347.74 = 34,687,020.42/x - Step 3: Cross multiply
63,660,396.42x = 87,851,347.74 × 34,687,020.42 - Step 4: Simplify right side
63,660,396.42x = 3,047,301,492,981,901 - Step 5: Solve for x
x = 3,047,301,492,981,901/63,660,396.42 - Step 6: Final answer
x = 47,868,088.55
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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.