Finding the Fourth Proportional to 22,569,789.21, 31,155,843 and 15,237,553.68
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Solution
The fourth proportional to 22,569,789.21, 31,155,843 and 15,237,553.68 is: 21,034,260.70
Step by Step Solution
- Step 1: Write the proportion equation
22,569,789.21 : 31,155,843 = 15,237,553.68 : x - Step 2: Convert to fraction form
22,569,789.21/31,155,843 = 15,237,553.68/x - Step 3: Cross multiply
22,569,789.21x = 31,155,843 × 15,237,553.68 - Step 4: Simplify right side
22,569,789.21x = 474,738,830,158,152.25 - Step 5: Solve for x
x = 474,738,830,158,152.25/22,569,789.21 - Step 6: Final answer
x = 21,034,260.70
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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.