Finding the Fourth Proportional to 1,259,227,932.52, 1,737,736,865.70 and 702,346,873.96
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Solution
The fourth proportional to 1,259,227,932.52, 1,737,736,865.70 and 702,346,873.96 is: 969,239,979.41
Step by Step Solution
- Step 1: Write the proportion equation
1,259,227,932.52 : 1,737,736,865.70 = 702,346,873.96 : x - Step 2: Convert to fraction form
1,259,227,932.52/1,737,736,865.70 = 702,346,873.96/x - Step 3: Cross multiply
1,259,227,932.52x = 1,737,736,865.70 × 702,346,873.96 - Step 4: Simplify right side
1,259,227,932.52x = 1,220,494,055,389,443,328 - Step 5: Solve for x
x = 1,220,494,055,389,443,328/1,259,227,932.52 - Step 6: Final answer
x = 969,239,979.41
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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.