Finding the Fourth Proportional to 15,102,032.68, 20,840,842.65 and 8,226,564.76
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Solution
The fourth proportional to 15,102,032.68, 20,840,842.65 and 8,226,564.76 is: 11,352,679.82
Step by Step Solution
- Step 1: Write the proportion equation
15,102,032.68 : 20,840,842.65 = 8,226,564.76 : x - Step 2: Convert to fraction form
15,102,032.68/20,840,842.65 = 8,226,564.76/x - Step 3: Cross multiply
15,102,032.68x = 20,840,842.65 × 8,226,564.76 - Step 4: Simplify right side
15,102,032.68x = 171,448,541,713,195 - Step 5: Solve for x
x = 171,448,541,713,195/15,102,032.68 - Step 6: Final answer
x = 11,352,679.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.