Finding the Fourth Proportional to 1,497,186,874.88, 2,065,979,232.99 and 828,117,519.58
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Solution
The fourth proportional to 1,497,186,874.88, 2,065,979,232.99 and 828,117,519.58 is: 1,142,725,485.13
Step by Step Solution
- Step 1: Write the proportion equation
1,497,186,874.88 : 2,065,979,232.99 = 828,117,519.58 : x - Step 2: Convert to fraction form
1,497,186,874.88/2,065,979,232.99 = 828,117,519.58/x - Step 3: Cross multiply
1,497,186,874.88x = 2,065,979,232.99 × 828,117,519.58 - Step 4: Simplify right side
1,497,186,874.88x = 1,710,873,597,917,139,968 - Step 5: Solve for x
x = 1,710,873,597,917,139,968/1,497,186,874.88 - Step 6: Final answer
x = 1,142,725,485.13
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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.