Finding the Fourth Proportional to 21,282,959.57, 29,370,483.70 and 11,493,402.96
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Solution
The fourth proportional to 21,282,959.57, 29,370,483.70 and 11,493,402.96 is: 15,860,895.81
Step by Step Solution
- Step 1: Write the proportion equation
21,282,959.57 : 29,370,483.70 = 11,493,402.96 : x - Step 2: Convert to fraction form
21,282,959.57/29,370,483.70 = 11,493,402.96/x - Step 3: Cross multiply
21,282,959.57x = 29,370,483.70 × 11,493,402.96 - Step 4: Simplify right side
21,282,959.57x = 337,566,804,367,533.62 - Step 5: Solve for x
x = 337,566,804,367,533.62/21,282,959.57 - Step 6: Final answer
x = 15,860,895.81
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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.