Finding the Fourth Proportional to 1,071,211,488.65, 1,478,137,995.32 and 594,837,087.99
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Solution
The fourth proportional to 1,071,211,488.65, 1,478,137,995.32 and 594,837,087.99 is: 820,800,850.35
Step by Step Solution
- Step 1: Write the proportion equation
1,071,211,488.65 : 1,478,137,995.32 = 594,837,087.99 : x - Step 2: Convert to fraction form
1,071,211,488.65/1,478,137,995.32 = 594,837,087.99/x - Step 3: Cross multiply
1,071,211,488.65x = 1,478,137,995.32 × 594,837,087.99 - Step 4: Simplify right side
1,071,211,488.65x = 879,251,300,780,550,912 - Step 5: Solve for x
x = 879,251,300,780,550,912/1,071,211,488.65 - Step 6: Final answer
x = 820,800,850.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.