Finding the Fourth Proportional to 161,758,963.30, 242,638,444.95 and 71,059,699.30
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Solution
The fourth proportional to 161,758,963.30, 242,638,444.95 and 71,059,699.30 is: 106,589,548.95
Step by Step Solution
- Step 1: Write the proportion equation
161,758,963.30 : 242,638,444.95 = 71,059,699.30 : x - Step 2: Convert to fraction form
161,758,963.30/242,638,444.95 = 71,059,699.30/x - Step 3: Cross multiply
161,758,963.30x = 242,638,444.95 × 71,059,699.30 - Step 4: Simplify right side
161,758,963.30x = 17,241,814,936,766,602 - Step 5: Solve for x
x = 17,241,814,936,766,602/161,758,963.30 - Step 6: Final answer
x = 106,589,548.95
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1.5x scale
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.