Finding the Fourth Proportional to 647,568,047.20, 971,352,070.80 and 162,893,855.20
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Solution
The fourth proportional to 647,568,047.20, 971,352,070.80 and 162,893,855.20 is: 244,340,782.80
Step by Step Solution
- Step 1: Write the proportion equation
647,568,047.20 : 971,352,070.80 = 162,893,855.20 : x - Step 2: Convert to fraction form
647,568,047.20/971,352,070.80 = 162,893,855.20/x - Step 3: Cross multiply
647,568,047.20x = 971,352,070.80 × 162,893,855.20 - Step 4: Simplify right side
647,568,047.20x = 158,227,283,569,115,328 - Step 5: Solve for x
x = 158,227,283,569,115,328/647,568,047.20 - Step 6: Final answer
x = 244,340,782.80
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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.