Finding the Fourth Proportional to 79,133,359.80, 118,700,039.70 and 48,900,271.80
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Solution
The fourth proportional to 79,133,359.80, 118,700,039.70 and 48,900,271.80 is: 73,350,407.70
Step by Step Solution
- Step 1: Write the proportion equation
79,133,359.80 : 118,700,039.70 = 48,900,271.80 : x - Step 2: Convert to fraction form
79,133,359.80/118,700,039.70 = 48,900,271.80/x - Step 3: Cross multiply
79,133,359.80x = 118,700,039.70 × 48,900,271.80 - Step 4: Simplify right side
79,133,359.80x = 5,804,464,204,000,790 - Step 5: Solve for x
x = 5,804,464,204,000,790/79,133,359.80 - Step 6: Final answer
x = 73,350,407.70
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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.