Finding the Fourth Proportional to 486,986,873.71, 672,023,881.07 and 263,963,766.84
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Solution
The fourth proportional to 486,986,873.71, 672,023,881.07 and 263,963,766.84 is: 364,260,239.09
Step by Step Solution
- Step 1: Write the proportion equation
486,986,873.71 : 672,023,881.07 = 263,963,766.84 : x - Step 2: Convert to fraction form
486,986,873.71/672,023,881.07 = 263,963,766.84/x - Step 3: Cross multiply
486,986,873.71x = 672,023,881.07 × 263,963,766.84 - Step 4: Simplify right side
486,986,873.71x = 177,389,955,050,313,280 - Step 5: Solve for x
x = 177,389,955,050,313,280/486,986,873.71 - Step 6: Final answer
x = 364,260,239.09
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1.5x scale
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.