Finding the Fourth Proportional to 19,837,405.20, 29,756,107.80 and 5,462,691.60
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Solution
The fourth proportional to 19,837,405.20, 29,756,107.80 and 5,462,691.60 is: 8,194,037.40
Step by Step Solution
- Step 1: Write the proportion equation
19,837,405.20 : 29,756,107.80 = 5,462,691.60 : x - Step 2: Convert to fraction form
19,837,405.20/29,756,107.80 = 5,462,691.60/x - Step 3: Cross multiply
19,837,405.20x = 29,756,107.80 × 5,462,691.60 - Step 4: Simplify right side
19,837,405.20x = 162,548,440,127,754.47 - Step 5: Solve for x
x = 162,548,440,127,754.47/19,837,405.20 - Step 6: Final answer
x = 8,194,037.40
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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.