Finding the Fourth Proportional to 318,730,424.60, 439,836,373.64 and 177,594,352.68
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Solution
The fourth proportional to 318,730,424.60, 439,836,373.64 and 177,594,352.68 is: 245,073,736.40
Step by Step Solution
- Step 1: Write the proportion equation
318,730,424.60 : 439,836,373.64 = 177,594,352.68 : x - Step 2: Convert to fraction form
318,730,424.60/439,836,373.64 = 177,594,352.68/x - Step 3: Cross multiply
318,730,424.60x = 439,836,373.64 × 177,594,352.68 - Step 4: Simplify right side
318,730,424.60x = 78,112,456,060,826,448 - Step 5: Solve for x
x = 78,112,456,060,826,448/318,730,424.60 - Step 6: Final answer
x = 245,073,736.40
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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.