Finding the Fourth Proportional to 77,479,758.06, 106,929,618.48 and 57,866,595.79
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Solution
The fourth proportional to 77,479,758.06, 106,929,618.48 and 57,866,595.79 is: 79,861,542.75
Step by Step Solution
- Step 1: Write the proportion equation
77,479,758.06 : 106,929,618.48 = 57,866,595.79 : x - Step 2: Convert to fraction form
77,479,758.06/106,929,618.48 = 57,866,595.79/x - Step 3: Cross multiply
77,479,758.06x = 106,929,618.48 × 57,866,595.79 - Step 4: Simplify right side
77,479,758.06x = 6,187,653,010,561,074 - Step 5: Solve for x
x = 6,187,653,010,561,074/77,479,758.06 - Step 6: Final answer
x = 79,861,542.75
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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.