Finding the Fourth Proportional to 57,078,270.99, 78,638,734.71 and 54,357,293.07
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Solution
The fourth proportional to 57,078,270.99, 78,638,734.71 and 54,357,293.07 is: 74,889,948.05
Step by Step Solution
- Step 1: Write the proportion equation
57,078,270.99 : 78,638,734.71 = 54,357,293.07 : x - Step 2: Convert to fraction form
57,078,270.99/78,638,734.71 = 54,357,293.07/x - Step 3: Cross multiply
57,078,270.99x = 78,638,734.71 × 54,357,293.07 - Step 4: Simplify right side
57,078,270.99x = 4,274,588,749,285,451 - Step 5: Solve for x
x = 4,274,588,749,285,451/57,078,270.99 - Step 6: Final answer
x = 74,889,948.05
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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.