Finding the Fourth Proportional to 51,656,790.56, 77,474,610.40 and 19,302,720.80
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Solution
The fourth proportional to 51,656,790.56, 77,474,610.40 and 19,302,720.80 is: 28,950,129.45
Step by Step Solution
- Step 1: Write the proportion equation
51,656,790.56 : 77,474,610.40 = 19,302,720.80 : x - Step 2: Convert to fraction form
51,656,790.56/77,474,610.40 = 19,302,720.80/x - Step 3: Cross multiply
51,656,790.56x = 77,474,610.40 × 19,302,720.80 - Step 4: Simplify right side
51,656,790.56x = 1,495,470,773,639,976.50 - Step 5: Solve for x
x = 1,495,470,773,639,976.50/51,656,790.56 - Step 6: Final answer
x = 28,950,129.45
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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.