Finding the Fourth Proportional to 7,125,945.84, 9,827,455.82 and 5,556,466.76
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Solution
The fourth proportional to 7,125,945.84, 9,827,455.82 and 5,556,466.76 is: 7,662,973.13
Step by Step Solution
- Step 1: Write the proportion equation
7,125,945.84 : 9,827,455.82 = 5,556,466.76 : x - Step 2: Convert to fraction form
7,125,945.84/9,827,455.82 = 5,556,466.76/x - Step 3: Cross multiply
7,125,945.84x = 9,827,455.82 × 5,556,466.76 - Step 4: Simplify right side
7,125,945.84x = 54,605,931,522,278.93 - Step 5: Solve for x
x = 54,605,931,522,278.93/7,125,945.84 - Step 6: Final answer
x = 7,662,973.13
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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.