Finding the Fourth Proportional to 79,488,000.20, 119,232,000.30 and 28,427,673.80
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Solution
The fourth proportional to 79,488,000.20, 119,232,000.30 and 28,427,673.80 is: 42,641,510.70
Step by Step Solution
- Step 1: Write the proportion equation
79,488,000.20 : 119,232,000.30 = 28,427,673.80 : x - Step 2: Convert to fraction form
79,488,000.20/119,232,000.30 = 28,427,673.80/x - Step 3: Cross multiply
79,488,000.20x = 119,232,000.30 × 28,427,673.80 - Step 4: Simplify right side
79,488,000.20x = 3,389,488,411,049,902 - Step 5: Solve for x
x = 3,389,488,411,049,902/79,488,000.20 - Step 6: Final answer
x = 42,641,510.70
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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.