Finding the Fourth Proportional to 607,392,023.80, 911,088,035.70 and 279,866,903.80
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Solution
The fourth proportional to 607,392,023.80, 911,088,035.70 and 279,866,903.80 is: 419,800,355.70
Step by Step Solution
- Step 1: Write the proportion equation
607,392,023.80 : 911,088,035.70 = 279,866,903.80 : x - Step 2: Convert to fraction form
607,392,023.80/911,088,035.70 = 279,866,903.80/x - Step 3: Cross multiply
607,392,023.80x = 911,088,035.70 × 279,866,903.80 - Step 4: Simplify right side
607,392,023.80x = 254,983,387,640,582,880 - Step 5: Solve for x
x = 254,983,387,640,582,880/607,392,023.80 - Step 6: Final answer
x = 419,800,355.70
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1.5x scale
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.