Finding the Fourth Proportional to 2,909,878.55, 4,014,924.16 and 1,916,343.80
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Solution
The fourth proportional to 2,909,878.55, 4,014,924.16 and 1,916,343.80 is: 2,644,088.02
Step by Step Solution
- Step 1: Write the proportion equation
2,909,878.55 : 4,014,924.16 = 1,916,343.80 : x - Step 2: Convert to fraction form
2,909,878.55/4,014,924.16 = 1,916,343.80/x - Step 3: Cross multiply
2,909,878.55x = 4,014,924.16 × 1,916,343.80 - Step 4: Simplify right side
2,909,878.55x = 7,693,975,021,486.21 - Step 5: Solve for x
x = 7,693,975,021,486.21/2,909,878.55 - Step 6: Final answer
x = 2,644,088.02
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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.