Finding the Fourth Proportional to 1,189,714,246.45, 1,641,121,856.44 and 742,901,977.99
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Solution
The fourth proportional to 1,189,714,246.45, 1,641,121,856.44 and 742,901,977.99 is: 1,024,777,737.10
Step by Step Solution
- Step 1: Write the proportion equation
1,189,714,246.45 : 1,641,121,856.44 = 742,901,977.99 : x - Step 2: Convert to fraction form
1,189,714,246.45/1,641,121,856.44 = 742,901,977.99/x - Step 3: Cross multiply
1,189,714,246.45x = 1,641,121,856.44 × 742,901,977.99 - Step 4: Simplify right side
1,189,714,246.45x = 1,219,192,673,271,896,832 - Step 5: Solve for x
x = 1,219,192,673,271,896,832/1,189,714,246.45 - Step 6: Final answer
x = 1,024,777,737.10
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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.