Finding the Fourth Proportional to 747,871,253.99, 1,121,829,734.79 and 256,577,632.18
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Solution
The fourth proportional to 747,871,253.99, 1,121,829,734.79 and 256,577,632.18 is: 384,874,288.89
Step by Step Solution
- Step 1: Write the proportion equation
747,871,253.99 : 1,121,829,734.79 = 256,577,632.18 : x - Step 2: Convert to fraction form
747,871,253.99/1,121,829,734.79 = 256,577,632.18/x - Step 3: Cross multiply
747,871,253.99x = 1,121,829,734.79 × 256,577,632.18 - Step 4: Simplify right side
747,871,253.99x = 287,836,417,060,252,704 - Step 5: Solve for x
x = 287,836,417,060,252,704/747,871,253.99 - Step 6: Final answer
x = 384,874,288.89
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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.