Finding the Fourth Proportional to 1,159,043,995.20, 1,738,649,973.60 and 697,989,403.20
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Solution
The fourth proportional to 1,159,043,995.20, 1,738,649,973.60 and 697,989,403.20 is: 1,047,034,678.99
Step by Step Solution
- Step 1: Write the proportion equation
1,159,043,995.20 : 1,738,649,973.60 = 697,989,403.20 : x - Step 2: Convert to fraction form
1,159,043,995.20/1,738,649,973.60 = 697,989,403.20/x - Step 3: Cross multiply
1,159,043,995.20x = 1,738,649,973.60 × 697,989,403.20 - Step 4: Simplify right side
1,159,043,995.20x = 1,213,559,257,446,759,680 - Step 5: Solve for x
x = 1,213,559,257,446,759,680/1,159,043,995.20 - Step 6: Final answer
x = 1,047,034,678.99
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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.