Finding the Fourth Proportional to 68,237,422.38, 94,167,506.61 and 38,868,743.70
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Solution
The fourth proportional to 68,237,422.38, 94,167,506.61 and 38,868,743.70 is: 53,638,788.68
Step by Step Solution
- Step 1: Write the proportion equation
68,237,422.38 : 94,167,506.61 = 38,868,743.70 : x - Step 2: Convert to fraction form
68,237,422.38/94,167,506.61 = 38,868,743.70/x - Step 3: Cross multiply
68,237,422.38x = 94,167,506.61 × 38,868,743.70 - Step 4: Simplify right side
68,237,422.38x = 3,660,172,679,292,146 - Step 5: Solve for x
x = 3,660,172,679,292,146/68,237,422.38 - Step 6: Final answer
x = 53,638,788.68
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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.