Finding the Fourth Proportional to 774,156,828.80, 1,161,235,243.20 and 657,255,555.20
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Solution
The fourth proportional to 774,156,828.80, 1,161,235,243.20 and 657,255,555.20 is: 985,883,332.80
Step by Step Solution
- Step 1: Write the proportion equation
774,156,828.80 : 1,161,235,243.20 = 657,255,555.20 : x - Step 2: Convert to fraction form
774,156,828.80/1,161,235,243.20 = 657,255,555.20/x - Step 3: Cross multiply
774,156,828.80x = 1,161,235,243.20 × 657,255,555.20 - Step 4: Simplify right side
774,156,828.80x = 763,228,314,487,223,168 - Step 5: Solve for x
x = 763,228,314,487,223,168/774,156,828.80 - Step 6: Final answer
x = 985,883,332.80
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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.