Finding the Fourth Proportional to 1,487,633,298.80, 2,052,872,305.06 and 809,453,049.95
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Solution
The fourth proportional to 1,487,633,298.80, 2,052,872,305.06 and 809,453,049.95 is: 1,117,011,665.33
Step by Step Solution
- Step 1: Write the proportion equation
1,487,633,298.80 : 2,052,872,305.06 = 809,453,049.95 : x - Step 2: Convert to fraction form
1,487,633,298.80/2,052,872,305.06 = 809,453,049.95/x - Step 3: Cross multiply
1,487,633,298.80x = 2,052,872,305.06 × 809,453,049.95 - Step 4: Simplify right side
1,487,633,298.80x = 1,661,703,748,488,703,744 - Step 5: Solve for x
x = 1,661,703,748,488,703,744/1,487,633,298.80 - Step 6: Final answer
x = 1,117,011,665.33
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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.