Finding the Fourth Proportional to 5,759,881.40, 7,948,483.80 and 3,181,506.68
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Solution
The fourth proportional to 5,759,881.40, 7,948,483.80 and 3,181,506.68 is: 4,390,394.96
Step by Step Solution
- Step 1: Write the proportion equation
5,759,881.40 : 7,948,483.80 = 3,181,506.68 : x - Step 2: Convert to fraction form
5,759,881.40/7,948,483.80 = 3,181,506.68/x - Step 3: Cross multiply
5,759,881.40x = 7,948,483.80 × 3,181,506.68 - Step 4: Simplify right side
5,759,881.40x = 25,288,154,265,829.36 - Step 5: Solve for x
x = 25,288,154,265,829.36/5,759,881.40 - Step 6: Final answer
x = 4,390,394.96
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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.