Finding the Fourth Proportional to 1,434,299,457.15, 1,979,313,130.98 and 799,246,715.19
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Solution
The fourth proportional to 1,434,299,457.15, 1,979,313,130.98 and 799,246,715.19 is: 1,102,949,255.39
Step by Step Solution
- Step 1: Write the proportion equation
1,434,299,457.15 : 1,979,313,130.98 = 799,246,715.19 : x - Step 2: Convert to fraction form
1,434,299,457.15/1,979,313,130.98 = 799,246,715.19/x - Step 3: Cross multiply
1,434,299,457.15x = 1,979,313,130.98 × 799,246,715.19 - Step 4: Simplify right side
1,434,299,457.15x = 1,581,959,518,260,300,800 - Step 5: Solve for x
x = 1,581,959,518,260,300,800/1,434,299,457.15 - Step 6: Final answer
x = 1,102,949,255.39
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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.