Finding the Fourth Proportional to 79,439,817.80, 119,159,726.70 and 49,206,729.80
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Solution
The fourth proportional to 79,439,817.80, 119,159,726.70 and 49,206,729.80 is: 73,810,094.70
Step by Step Solution
- Step 1: Write the proportion equation
79,439,817.80 : 119,159,726.70 = 49,206,729.80 : x - Step 2: Convert to fraction form
79,439,817.80/119,159,726.70 = 49,206,729.80/x - Step 3: Cross multiply
79,439,817.80x = 119,159,726.70 × 49,206,729.80 - Step 4: Simplify right side
79,439,817.80x = 5,863,460,474,768,745 - Step 5: Solve for x
x = 5,863,460,474,768,745/79,439,817.80 - Step 6: Final answer
x = 73,810,094.70
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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.