Finding the Fourth Proportional to 248,896,898.68, 343,477,739.12 and 137,387,765.92
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Solution
The fourth proportional to 248,896,898.68, 343,477,739.12 and 137,387,765.92 is: 189,595,127.43
Step by Step Solution
- Step 1: Write the proportion equation
248,896,898.68 : 343,477,739.12 = 137,387,765.92 : x - Step 2: Convert to fraction form
248,896,898.68/343,477,739.12 = 137,387,765.92/x - Step 3: Cross multiply
248,896,898.68x = 343,477,739.12 × 137,387,765.92 - Step 4: Simplify right side
248,896,898.68x = 47,189,639,220,949,384 - Step 5: Solve for x
x = 47,189,639,220,949,384/248,896,898.68 - Step 6: Final answer
x = 189,595,127.43
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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.