Finding the Fourth Proportional to 77,709,340.66, 107,287,287.08 and 49,467,648.62
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Solution
The fourth proportional to 77,709,340.66, 107,287,287.08 and 49,467,648.62 is: 68,296,163.28
Step by Step Solution
- Step 1: Write the proportion equation
77,709,340.66 : 107,287,287.08 = 49,467,648.62 : x - Step 2: Convert to fraction form
77,709,340.66/107,287,287.08 = 49,467,648.62/x - Step 3: Cross multiply
77,709,340.66x = 107,287,287.08 × 49,467,648.62 - Step 4: Simplify right side
77,709,340.66x = 5,307,249,817,882,732 - Step 5: Solve for x
x = 5,307,249,817,882,732/77,709,340.66 - Step 6: Final answer
x = 68,296,163.28
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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.