Finding the Fourth Proportional to 11,722,483.47, 17,553,442.14 and 8,090,420.79
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Solution
The fourth proportional to 11,722,483.47, 17,553,442.14 and 8,090,420.79 is: 12,114,730.94
Step by Step Solution
- Step 1: Write the proportion equation
11,722,483.47 : 17,553,442.14 = 8,090,420.79 : x - Step 2: Convert to fraction form
11,722,483.47/17,553,442.14 = 8,090,420.79/x - Step 3: Cross multiply
11,722,483.47x = 17,553,442.14 × 8,090,420.79 - Step 4: Simplify right side
11,722,483.47x = 142,014,733,225,518.09 - Step 5: Solve for x
x = 142,014,733,225,518.09/11,722,483.47 - Step 6: Final answer
x = 12,114,730.94
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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.