Finding the Fourth Proportional to 1,487,633,292.05, 2,052,872,295.75 and 809,453,043.20
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Solution
The fourth proportional to 1,487,633,292.05, 2,052,872,295.75 and 809,453,043.20 is: 1,117,011,656.01
Step by Step Solution
- Step 1: Write the proportion equation
1,487,633,292.05 : 2,052,872,295.75 = 809,453,043.20 : x - Step 2: Convert to fraction form
1,487,633,292.05/2,052,872,295.75 = 809,453,043.20/x - Step 3: Cross multiply
1,487,633,292.05x = 2,052,872,295.75 × 809,453,043.20 - Step 4: Simplify right side
1,487,633,292.05x = 1,661,703,727,095,808,000 - Step 5: Solve for x
x = 1,661,703,727,095,808,000/1,487,633,292.05 - Step 6: Final answer
x = 1,117,011,656.01
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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.