Finding the Fourth Proportional to 47,911,208.80, 71,866,813.20 and 13,367,543.80
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Solution
The fourth proportional to 47,911,208.80, 71,866,813.20 and 13,367,543.80 is: 20,051,315.70
Step by Step Solution
- Step 1: Write the proportion equation
47,911,208.80 : 71,866,813.20 = 13,367,543.80 : x - Step 2: Convert to fraction form
47,911,208.80/71,866,813.20 = 13,367,543.80/x - Step 3: Cross multiply
47,911,208.80x = 71,866,813.20 × 13,367,543.80 - Step 4: Simplify right side
47,911,208.80x = 960,682,773,217,418.25 - Step 5: Solve for x
x = 960,682,773,217,418.25/47,911,208.80 - Step 6: Final answer
x = 20,051,315.70
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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.