Finding the Fourth Proportional to 1,260,995,270.19, 1,740,281,037.12 and 704,185,886.67
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Solution
The fourth proportional to 1,260,995,270.19, 1,740,281,037.12 and 704,185,886.67 is: 971,836,591.42
Step by Step Solution
- Step 1: Write the proportion equation
1,260,995,270.19 : 1,740,281,037.12 = 704,185,886.67 : x - Step 2: Convert to fraction form
1,260,995,270.19/1,740,281,037.12 = 704,185,886.67/x - Step 3: Cross multiply
1,260,995,270.19x = 1,740,281,037.12 × 704,185,886.67 - Step 4: Simplify right side
1,260,995,270.19x = 1,225,481,345,179,334,144 - Step 5: Solve for x
x = 1,225,481,345,179,334,144/1,260,995,270.19 - Step 6: Final answer
x = 971,836,591.42
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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.