Finding the Fourth Proportional to 3,531,485.18, 4,873,982.03 and 2,155,626.47
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Solution
The fourth proportional to 3,531,485.18, 4,873,982.03 and 2,155,626.47 is: 2,975,089.55
Step by Step Solution
- Step 1: Write the proportion equation
3,531,485.18 : 4,873,982.03 = 2,155,626.47 : x - Step 2: Convert to fraction form
3,531,485.18/4,873,982.03 = 2,155,626.47/x - Step 3: Cross multiply
3,531,485.18x = 4,873,982.03 × 2,155,626.47 - Step 4: Simplify right side
3,531,485.18x = 10,506,484,643,024.29 - Step 5: Solve for x
x = 10,506,484,643,024.29/3,531,485.18 - Step 6: Final answer
x = 2,975,089.55
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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.