Finding the Fourth Proportional to 1,497,187,163.49, 2,065,979,630.19 and 828,117,808.80
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Solution
The fourth proportional to 1,497,187,163.49, 2,065,979,630.19 and 828,117,808.80 is: 1,142,725,883.64
Step by Step Solution
- Step 1: Write the proportion equation
1,497,187,163.49 : 2,065,979,630.19 = 828,117,808.80 : x - Step 2: Convert to fraction form
1,497,187,163.49/2,065,979,630.19 = 828,117,808.80/x - Step 3: Cross multiply
1,497,187,163.49x = 2,065,979,630.19 × 828,117,808.80 - Step 4: Simplify right side
1,497,187,163.49x = 1,710,874,524,378,376,960 - Step 5: Solve for x
x = 1,710,874,524,378,376,960/1,497,187,163.49 - Step 6: Final answer
x = 1,142,725,883.64
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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.