Finding the Fourth Proportional to 1,119,751,208.10, 1,679,626,812.15 and 708,581,211.30
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Solution
The fourth proportional to 1,119,751,208.10, 1,679,626,812.15 and 708,581,211.30 is: 1,062,871,816.95
Step by Step Solution
- Step 1: Write the proportion equation
1,119,751,208.10 : 1,679,626,812.15 = 708,581,211.30 : x - Step 2: Convert to fraction form
1,119,751,208.10/1,679,626,812.15 = 708,581,211.30/x - Step 3: Cross multiply
1,119,751,208.10x = 1,679,626,812.15 × 708,581,211.30 - Step 4: Simplify right side
1,119,751,208.10x = 1,190,152,001,085,204,480 - Step 5: Solve for x
x = 1,190,152,001,085,204,480/1,119,751,208.10 - Step 6: Final answer
x = 1,062,871,816.95
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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.