Finding the Fourth Proportional to 48,215,270.79, 66,537,612.88 and 28,373,422.83
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Solution
The fourth proportional to 48,215,270.79, 66,537,612.88 and 28,373,422.83 is: 39,155,640.80
Step by Step Solution
- Step 1: Write the proportion equation
48,215,270.79 : 66,537,612.88 = 28,373,422.83 : x - Step 2: Convert to fraction form
48,215,270.79/66,537,612.88 = 28,373,422.83/x - Step 3: Cross multiply
48,215,270.79x = 66,537,612.88 × 28,373,422.83 - Step 4: Simplify right side
48,215,270.79x = 1,887,899,823,868,538.75 - Step 5: Solve for x
x = 1,887,899,823,868,538.75/48,215,270.79 - Step 6: Final answer
x = 39,155,640.80
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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.