Finding the Fourth Proportional to 13,290,121.64, 19,935,816.12 and 6,458,555.99
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Solution
The fourth proportional to 13,290,121.64, 19,935,816.12 and 6,458,555.99 is: 9,688,141.92
Step by Step Solution
- Step 1: Write the proportion equation
13,290,121.64 : 19,935,816.12 = 6,458,555.99 : x - Step 2: Convert to fraction form
13,290,121.64/19,935,816.12 = 6,458,555.99/x - Step 3: Cross multiply
13,290,121.64x = 19,935,816.12 × 6,458,555.99 - Step 4: Simplify right side
13,290,121.64x = 128,756,584,667,204.09 - Step 5: Solve for x
x = 128,756,584,667,204.09/13,290,121.64 - Step 6: Final answer
x = 9,688,141.92
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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.