Finding the Fourth Proportional to 763,884,292.80, 1,145,826,527.97 and 239,294,274.03
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Solution
The fourth proportional to 763,884,292.80, 1,145,826,527.97 and 239,294,274.03 is: 358,941,438.85
Step by Step Solution
- Step 1: Write the proportion equation
763,884,292.80 : 1,145,826,527.97 = 239,294,274.03 : x - Step 2: Convert to fraction form
763,884,292.80/1,145,826,527.97 = 239,294,274.03/x - Step 3: Cross multiply
763,884,292.80x = 1,145,826,527.97 × 239,294,274.03 - Step 4: Simplify right side
763,884,292.80x = 274,189,727,174,896,640 - Step 5: Solve for x
x = 274,189,727,174,896,640/763,884,292.80 - Step 6: Final answer
x = 358,941,438.85
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1.5x scale
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.