Finding the Fourth Proportional to 77,190,034.49, 106,523,771.12 and 42,382,420.46
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Solution
The fourth proportional to 77,190,034.49, 106,523,771.12 and 42,382,420.46 is: 58,488,576.75
Step by Step Solution
- Step 1: Write the proportion equation
77,190,034.49 : 106,523,771.12 = 42,382,420.46 : x - Step 2: Convert to fraction form
77,190,034.49/106,523,771.12 = 42,382,420.46/x - Step 3: Cross multiply
77,190,034.49x = 106,523,771.12 × 42,382,420.46 - Step 4: Simplify right side
77,190,034.49x = 4,514,735,256,592,645 - Step 5: Solve for x
x = 4,514,735,256,592,645/77,190,034.49 - Step 6: Final answer
x = 58,488,576.75
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1.5x scale
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.