Finding the Fourth Proportional to 98,747,865.24, 148,122,288.72 and 40,487,365.68
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Solution
The fourth proportional to 98,747,865.24, 148,122,288.72 and 40,487,365.68 is: 60,731,249.78
Step by Step Solution
- Step 1: Write the proportion equation
98,747,865.24 : 148,122,288.72 = 40,487,365.68 : x - Step 2: Convert to fraction form
98,747,865.24/148,122,288.72 = 40,487,365.68/x - Step 3: Cross multiply
98,747,865.24x = 148,122,288.72 × 40,487,365.68 - Step 4: Simplify right side
98,747,865.24x = 5,997,081,268,765,179 - Step 5: Solve for x
x = 5,997,081,268,765,179/98,747,865.24 - Step 6: Final answer
x = 60,731,249.78
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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.