Finding the Fourth Proportional to 77,307,528.99, 106,678,044.30 and 45,512,651.40
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Solution
The fourth proportional to 77,307,528.99, 106,678,044.30 and 45,512,651.40 is: 62,803,723.07
Step by Step Solution
- Step 1: Write the proportion equation
77,307,528.99 : 106,678,044.30 = 45,512,651.40 : x - Step 2: Convert to fraction form
77,307,528.99/106,678,044.30 = 45,512,651.40/x - Step 3: Cross multiply
77,307,528.99x = 106,678,044.30 × 45,512,651.40 - Step 4: Simplify right side
77,307,528.99x = 4,855,200,642,259,657 - Step 5: Solve for x
x = 4,855,200,642,259,657/77,307,528.99 - Step 6: Final answer
x = 62,803,723.07
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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.