Finding the Fourth Proportional to 576,552,139.20, 864,828,208.80 and 479,617,300.80
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Solution
The fourth proportional to 576,552,139.20, 864,828,208.80 and 479,617,300.80 is: 719,425,951.20
Step by Step Solution
- Step 1: Write the proportion equation
576,552,139.20 : 864,828,208.80 = 479,617,300.80 : x - Step 2: Convert to fraction form
576,552,139.20/864,828,208.80 = 479,617,300.80/x - Step 3: Cross multiply
576,552,139.20x = 864,828,208.80 × 479,617,300.80 - Step 4: Simplify right side
576,552,139.20x = 414,786,571,160,354,816 - Step 5: Solve for x
x = 414,786,571,160,354,816/576,552,139.20 - Step 6: Final answer
x = 719,425,951.20
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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.