Finding the Fourth Proportional to 260,018,901.92, 389,914,966.68 and 98,347,463.84
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Solution
The fourth proportional to 260,018,901.92, 389,914,966.68 and 98,347,463.84 is: 147,478,309.47
Step by Step Solution
- Step 1: Write the proportion equation
260,018,901.92 : 389,914,966.68 = 98,347,463.84 : x - Step 2: Convert to fraction form
260,018,901.92/389,914,966.68 = 98,347,463.84/x - Step 3: Cross multiply
260,018,901.92x = 389,914,966.68 × 98,347,463.84 - Step 4: Simplify right side
260,018,901.92x = 38,347,148,086,236,104 - Step 5: Solve for x
x = 38,347,148,086,236,104/260,018,901.92 - Step 6: Final answer
x = 147,478,309.47
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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.