Finding the Fourth Proportional to 81,583,036.20, 122,338,643.72 and 43,235,565.84
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Solution
The fourth proportional to 81,583,036.20, 122,338,643.72 and 43,235,565.84 is: 64,834,317.67
Step by Step Solution
- Step 1: Write the proportion equation
81,583,036.20 : 122,338,643.72 = 43,235,565.84 : x - Step 2: Convert to fraction form
81,583,036.20/122,338,643.72 = 43,235,565.84/x - Step 3: Cross multiply
81,583,036.20x = 122,338,643.72 × 43,235,565.84 - Step 4: Simplify right side
81,583,036.20x = 5,289,380,485,332,363 - Step 5: Solve for x
x = 5,289,380,485,332,363/81,583,036.20 - Step 6: Final answer
x = 64,834,317.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.