Finding the Fourth Proportional to 2,985,347.90, 4,119,781.21 and 1,696,189.98
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Solution
The fourth proportional to 2,985,347.90, 4,119,781.21 and 1,696,189.98 is: 2,340,742.80
Step by Step Solution
- Step 1: Write the proportion equation
2,985,347.90 : 4,119,781.21 = 1,696,189.98 : x - Step 2: Convert to fraction form
2,985,347.90/4,119,781.21 = 1,696,189.98/x - Step 3: Cross multiply
2,985,347.90x = 4,119,781.21 × 1,696,189.98 - Step 4: Simplify right side
2,985,347.90x = 6,987,931,608,194.28 - Step 5: Solve for x
x = 6,987,931,608,194.28/2,985,347.90 - Step 6: Final answer
x = 2,340,742.80
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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.