Finding the Fourth Proportional to 56,368,850.90, 84,566,709.78 and 19,980,421.42
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Solution
The fourth proportional to 56,368,850.90, 84,566,709.78 and 19,980,421.42 is: 29,975,393.72
Step by Step Solution
- Step 1: Write the proportion equation
56,368,850.90 : 84,566,709.78 = 19,980,421.42 : x - Step 2: Convert to fraction form
56,368,850.90/84,566,709.78 = 19,980,421.42/x - Step 3: Cross multiply
56,368,850.90x = 84,566,709.78 × 19,980,421.42 - Step 4: Simplify right side
56,368,850.90x = 1,689,678,499,507,235.75 - Step 5: Solve for x
x = 1,689,678,499,507,235.75/56,368,850.90 - Step 6: Final answer
x = 29,975,393.72
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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.