Finding the Fourth Proportional to 1,128,502,182.68, 1,557,146,156.61 and 652,236,901.41
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Solution
The fourth proportional to 1,128,502,182.68, 1,557,146,156.61 and 652,236,901.41 is: 899,978,927.66
Step by Step Solution
- Step 1: Write the proportion equation
1,128,502,182.68 : 1,557,146,156.61 = 652,236,901.41 : x - Step 2: Convert to fraction form
1,128,502,182.68/1,557,146,156.61 = 652,236,901.41/x - Step 3: Cross multiply
1,128,502,182.68x = 1,557,146,156.61 × 652,236,901.41 - Step 4: Simplify right side
1,128,502,182.68x = 1,015,628,184,229,796,864 - Step 5: Solve for x
x = 1,015,628,184,229,796,864/1,128,502,182.68 - Step 6: Final answer
x = 899,978,927.66
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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.