Finding the Fourth Proportional to 979,668,616.14, 1,351,942,763.40 and 539,635,468.14
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Solution
The fourth proportional to 979,668,616.14, 1,351,942,763.40 and 539,635,468.14 is: 744,696,986.31
Step by Step Solution
- Step 1: Write the proportion equation
979,668,616.14 : 1,351,942,763.40 = 539,635,468.14 : x - Step 2: Convert to fraction form
979,668,616.14/1,351,942,763.40 = 539,635,468.14/x - Step 3: Cross multiply
979,668,616.14x = 1,351,942,763.40 × 539,635,468.14 - Step 4: Simplify right side
979,668,616.14x = 729,556,266,025,844,352 - Step 5: Solve for x
x = 729,556,266,025,844,352/979,668,616.14 - Step 6: Final answer
x = 744,696,986.31
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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.