Finding the Fourth Proportional to 28,460,292.62, 39,275,209.97 and 15,407,658.79
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Solution
The fourth proportional to 28,460,292.62, 39,275,209.97 and 15,407,658.79 is: 21,262,572.47
Step by Step Solution
- Step 1: Write the proportion equation
28,460,292.62 : 39,275,209.97 = 15,407,658.79 : x - Step 2: Convert to fraction form
28,460,292.62/39,275,209.97 = 15,407,658.79/x - Step 3: Cross multiply
28,460,292.62x = 39,275,209.97 × 15,407,658.79 - Step 4: Simplify right side
28,460,292.62x = 605,139,034,226,841.62 - Step 5: Solve for x
x = 605,139,034,226,841.62/28,460,292.62 - Step 6: Final answer
x = 21,262,572.47
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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.