Finding the Fourth Proportional to 5,215,719.25, 7,823,495.76 and 1,429,202.17
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Solution
The fourth proportional to 5,215,719.25, 7,823,495.76 and 1,429,202.17 is: 2,143,780.48
Step by Step Solution
- Step 1: Write the proportion equation
5,215,719.25 : 7,823,495.76 = 1,429,202.17 : x - Step 2: Convert to fraction form
5,215,719.25/7,823,495.76 = 1,429,202.17/x - Step 3: Cross multiply
5,215,719.25x = 7,823,495.76 × 1,429,202.17 - Step 4: Simplify right side
5,215,719.25x = 11,181,357,117,177.80 - Step 5: Solve for x
x = 11,181,357,117,177.80/5,215,719.25 - Step 6: Final answer
x = 2,143,780.48
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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.