Finding the Fourth Proportional to 31,257,971.88, 43,112,280.51 and 27,383,766.99
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Solution
The fourth proportional to 31,257,971.88, 43,112,280.51 and 27,383,766.99 is: 37,768,817.77
Step by Step Solution
- Step 1: Write the proportion equation
31,257,971.88 : 43,112,280.51 = 27,383,766.99 : x - Step 2: Convert to fraction form
31,257,971.88/43,112,280.51 = 27,383,766.99/x - Step 3: Cross multiply
31,257,971.88x = 43,112,280.51 × 27,383,766.99 - Step 4: Simplify right side
31,257,971.88x = 1,180,576,643,893,358.25 - Step 5: Solve for x
x = 1,180,576,643,893,358.25/31,257,971.88 - Step 6: Final answer
x = 37,768,817.77
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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.