Finding the Fourth Proportional to 1,071,211,489.65, 1,478,137,996.69 and 594,837,088.99
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Solution
The fourth proportional to 1,071,211,489.65, 1,478,137,996.69 and 594,837,088.99 is: 820,800,851.72
Step by Step Solution
- Step 1: Write the proportion equation
1,071,211,489.65 : 1,478,137,996.69 = 594,837,088.99 : x - Step 2: Convert to fraction form
1,071,211,489.65/1,478,137,996.69 = 594,837,088.99/x - Step 3: Cross multiply
1,071,211,489.65x = 1,478,137,996.69 × 594,837,088.99 - Step 4: Simplify right side
1,071,211,489.65x = 879,251,303,076,589,952 - Step 5: Solve for x
x = 879,251,303,076,589,952/1,071,211,489.65 - Step 6: Final answer
x = 820,800,851.72
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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.