Finding the Fourth Proportional to 77,098,754.91, 106,379,070.56 and 45,720,859.05
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Solution
The fourth proportional to 77,098,754.91, 106,379,070.56 and 45,720,859.05 is: 63,084,578.95
Step by Step Solution
- Step 1: Write the proportion equation
77,098,754.91 : 106,379,070.56 = 45,720,859.05 : x - Step 2: Convert to fraction form
77,098,754.91/106,379,070.56 = 45,720,859.05/x - Step 3: Cross multiply
77,098,754.91x = 106,379,070.56 × 45,720,859.05 - Step 4: Simplify right side
77,098,754.91x = 4,863,742,490,715,160 - Step 5: Solve for x
x = 4,863,742,490,715,160/77,098,754.91 - Step 6: Final answer
x = 63,084,578.95
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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.