Finding the Fourth Proportional to 98,747,883.36, 148,122,315.84 and 40,487,383.68
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Solution
The fourth proportional to 98,747,883.36, 148,122,315.84 and 40,487,383.68 is: 60,731,276.75
Step by Step Solution
- Step 1: Write the proportion equation
98,747,883.36 : 148,122,315.84 = 40,487,383.68 : x - Step 2: Convert to fraction form
98,747,883.36/148,122,315.84 = 40,487,383.68/x - Step 3: Cross multiply
98,747,883.36x = 148,122,315.84 × 40,487,383.68 - Step 4: Simplify right side
98,747,883.36x = 5,997,085,032,984,222 - Step 5: Solve for x
x = 5,997,085,032,984,222/98,747,883.36 - Step 6: Final answer
x = 60,731,276.75
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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.