Finding the Fourth Proportional to 3,557,864.77, 4,909,794.77 and 1,926,259.09
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Solution
The fourth proportional to 3,557,864.77, 4,909,794.77 and 1,926,259.09 is: 2,658,205.81
Step by Step Solution
- Step 1: Write the proportion equation
3,557,864.77 : 4,909,794.77 = 1,926,259.09 : x - Step 2: Convert to fraction form
3,557,864.77/4,909,794.77 = 1,926,259.09/x - Step 3: Cross multiply
3,557,864.77x = 4,909,794.77 × 1,926,259.09 - Step 4: Simplify right side
3,557,864.77x = 9,457,536,815,070.51 - Step 5: Solve for x
x = 9,457,536,815,070.51/3,557,864.77 - Step 6: Final answer
x = 2,658,205.81
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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.