Finding the Fourth Proportional to 78,391,357.10, 117,579,432.17 and 23,804,414.84
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Solution
The fourth proportional to 78,391,357.10, 117,579,432.17 and 23,804,414.84 is: 35,704,313.37
Step by Step Solution
- Step 1: Write the proportion equation
78,391,357.10 : 117,579,432.17 = 23,804,414.84 : x - Step 2: Convert to fraction form
78,391,357.10/117,579,432.17 = 23,804,414.84/x - Step 3: Cross multiply
78,391,357.10x = 117,579,432.17 × 23,804,414.84 - Step 4: Simplify right side
78,391,357.10x = 2,798,909,579,319,402.50 - Step 5: Solve for x
x = 2,798,909,579,319,402.50/78,391,357.10 - Step 6: Final answer
x = 35,704,313.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.