Finding the Fourth Proportional to 2,356,128,839.20, 3,534,193,258.80 and 803,281,856.80
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Solution
The fourth proportional to 2,356,128,839.20, 3,534,193,258.80 and 803,281,856.80 is: 1,204,922,785.20
Step by Step Solution
- Step 1: Write the proportion equation
2,356,128,839.20 : 3,534,193,258.80 = 803,281,856.80 : x - Step 2: Convert to fraction form
2,356,128,839.20/3,534,193,258.80 = 803,281,856.80/x - Step 3: Cross multiply
2,356,128,839.20x = 3,534,193,258.80 × 803,281,856.80 - Step 4: Simplify right side
2,356,128,839.20x = 2,838,953,323,218,907,136 - Step 5: Solve for x
x = 2,838,953,323,218,907,136/2,356,128,839.20 - Step 6: Final answer
x = 1,204,922,785.20
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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.