Finding the Fourth Proportional to 1,246,102,062.48, 1,869,156,259.81 and 509,171,968.49
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Solution
The fourth proportional to 1,246,102,062.48, 1,869,156,259.81 and 509,171,968.49 is: 763,759,246.43
Step by Step Solution
- Step 1: Write the proportion equation
1,246,102,062.48 : 1,869,156,259.81 = 509,171,968.49 : x - Step 2: Convert to fraction form
1,246,102,062.48/1,869,156,259.81 = 509,171,968.49/x - Step 3: Cross multiply
1,246,102,062.48x = 1,869,156,259.81 × 509,171,968.49 - Step 4: Simplify right side
1,246,102,062.48x = 951,721,972,212,244,864 - Step 5: Solve for x
x = 951,721,972,212,244,864/1,246,102,062.48 - Step 6: Final answer
x = 763,759,246.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.