Finding the Fourth Proportional to 29,135,738.56, 40,208,270.88 and 15,905,620.96
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Solution
The fourth proportional to 29,135,738.56, 40,208,270.88 and 15,905,620.96 is: 21,950,276.45
Step by Step Solution
- Step 1: Write the proportion equation
29,135,738.56 : 40,208,270.88 = 15,905,620.96 : x - Step 2: Convert to fraction form
29,135,738.56/40,208,270.88 = 15,905,620.96/x - Step 3: Cross multiply
29,135,738.56x = 40,208,270.88 × 15,905,620.96 - Step 4: Simplify right side
29,135,738.56x = 639,537,516,074,285.75 - Step 5: Solve for x
x = 639,537,516,074,285.75/29,135,738.56 - Step 6: Final answer
x = 21,950,276.45
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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.