Finding the Fourth Proportional to 38,620,631.20, 57,968,271.60 and 19,473,008.80
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Solution
The fourth proportional to 38,620,631.20, 57,968,271.60 and 19,473,008.80 is: 29,228,332.83
Step by Step Solution
- Step 1: Write the proportion equation
38,620,631.20 : 57,968,271.60 = 19,473,008.80 : x - Step 2: Convert to fraction form
38,620,631.20/57,968,271.60 = 19,473,008.80/x - Step 3: Cross multiply
38,620,631.20x = 57,968,271.60 × 19,473,008.80 - Step 4: Simplify right side
38,620,631.20x = 1,128,816,662,987,590.25 - Step 5: Solve for x
x = 1,128,816,662,987,590.25/38,620,631.20 - Step 6: Final answer
x = 29,228,332.83
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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.