Finding the Fourth Proportional to 81,106,900.56, 121,667,830.25 and 26,519,765.99
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Solution
The fourth proportional to 81,106,900.56, 121,667,830.25 and 26,519,765.99 is: 39,782,094.54
Step by Step Solution
- Step 1: Write the proportion equation
81,106,900.56 : 121,667,830.25 = 26,519,765.99 : x - Step 2: Convert to fraction form
81,106,900.56/121,667,830.25 = 26,519,765.99/x - Step 3: Cross multiply
81,106,900.56x = 121,667,830.25 × 26,519,765.99 - Step 4: Simplify right side
81,106,900.56x = 3,226,602,386,000,105.50 - Step 5: Solve for x
x = 3,226,602,386,000,105.50/81,106,900.56 - Step 6: Final answer
x = 39,782,094.54
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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.