Finding the Fourth Proportional to 10,134,331.20, 15,204,088.80 and 7,148,347.20
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Solution
The fourth proportional to 10,134,331.20, 15,204,088.80 and 7,148,347.20 is: 10,724,349.09
Step by Step Solution
- Step 1: Write the proportion equation
10,134,331.20 : 15,204,088.80 = 7,148,347.20 : x - Step 2: Convert to fraction form
10,134,331.20/15,204,088.80 = 7,148,347.20/x - Step 3: Cross multiply
10,134,331.20x = 15,204,088.80 × 7,148,347.20 - Step 4: Simplify right side
10,134,331.20x = 108,684,105,602,031.38 - Step 5: Solve for x
x = 108,684,105,602,031.38/10,134,331.20 - Step 6: Final answer
x = 10,724,349.09
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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.