Finding the Fourth Proportional to 468,313,291.80, 702,469,937.70 and 439,615,477.80
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Solution
The fourth proportional to 468,313,291.80, 702,469,937.70 and 439,615,477.80 is: 659,423,216.70
Step by Step Solution
- Step 1: Write the proportion equation
468,313,291.80 : 702,469,937.70 = 439,615,477.80 : x - Step 2: Convert to fraction form
468,313,291.80/702,469,937.70 = 439,615,477.80/x - Step 3: Cross multiply
468,313,291.80x = 702,469,937.70 × 439,615,477.80 - Step 4: Simplify right side
468,313,291.80x = 308,816,657,302,121,792 - Step 5: Solve for x
x = 308,816,657,302,121,792/468,313,291.80 - Step 6: Final answer
x = 659,423,216.70
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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.