Finding the Fourth Proportional to 1,413,285,405.08, 2,119,956,451.68 and 378,144,625.28
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Solution
The fourth proportional to 1,413,285,405.08, 2,119,956,451.68 and 378,144,625.28 is: 567,224,521.78
Step by Step Solution
- Step 1: Write the proportion equation
1,413,285,405.08 : 2,119,956,451.68 = 378,144,625.28 : x - Step 2: Convert to fraction form
1,413,285,405.08/2,119,956,451.68 = 378,144,625.28/x - Step 3: Cross multiply
1,413,285,405.08x = 2,119,956,451.68 × 378,144,625.28 - Step 4: Simplify right side
1,413,285,405.08x = 801,650,138,030,451,968 - Step 5: Solve for x
x = 801,650,138,030,451,968/1,413,285,405.08 - Step 6: Final answer
x = 567,224,521.78
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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.