Finding the Fourth Proportional to 77,192,632.74, 106,525,833.74 and 42,385,323.18
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Solution
The fourth proportional to 77,192,632.74, 106,525,833.74 and 42,385,323.18 is: 58,491,746.30
Step by Step Solution
- Step 1: Write the proportion equation
77,192,632.74 : 106,525,833.74 = 42,385,323.18 : x - Step 2: Convert to fraction form
77,192,632.74/106,525,833.74 = 42,385,323.18/x - Step 3: Cross multiply
77,192,632.74x = 106,525,833.74 × 42,385,323.18 - Step 4: Simplify right side
77,192,632.74x = 4,515,131,890,088,848 - Step 5: Solve for x
x = 4,515,131,890,088,848/77,192,632.74 - Step 6: Final answer
x = 58,491,746.30
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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.