Finding the Fourth Proportional to 77,677,927.66, 116,532,240.80 and 28,494,237.65
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Solution
The fourth proportional to 77,677,927.66, 116,532,240.80 and 28,494,237.65 is: 42,746,986.99
Step by Step Solution
- Step 1: Write the proportion equation
77,677,927.66 : 116,532,240.80 = 28,494,237.65 : x - Step 2: Convert to fraction form
77,677,927.66/116,532,240.80 = 28,494,237.65/x - Step 3: Cross multiply
77,677,927.66x = 116,532,240.80 × 28,494,237.65 - Step 4: Simplify right side
77,677,927.66x = 3,320,497,363,242,226 - Step 5: Solve for x
x = 3,320,497,363,242,226/77,677,927.66 - Step 6: Final answer
x = 42,746,986.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.