Finding the Fourth Proportional to 1,968,339,861.80, 2,952,285,843.90 and 514,464,252.20
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Solution
The fourth proportional to 1,968,339,861.80, 2,952,285,843.90 and 514,464,252.20 is: 771,637,844.89
Step by Step Solution
- Step 1: Write the proportion equation
1,968,339,861.80 : 2,952,285,843.90 = 514,464,252.20 : x - Step 2: Convert to fraction form
1,968,339,861.80/2,952,285,843.90 = 514,464,252.20/x - Step 3: Cross multiply
1,968,339,861.80x = 2,952,285,843.90 × 514,464,252.20 - Step 4: Simplify right side
1,968,339,861.80x = 1,518,845,528,962,659,328 - Step 5: Solve for x
x = 1,518,845,528,962,659,328/1,968,339,861.80 - Step 6: Final answer
x = 771,637,844.89
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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.