Finding the Fourth Proportional to 7,911,412.84, 10,917,704.10 and 4,289,663.08
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Solution
The fourth proportional to 7,911,412.84, 10,917,704.10 and 4,289,663.08 is: 5,919,710.32
Step by Step Solution
- Step 1: Write the proportion equation
7,911,412.84 : 10,917,704.10 = 4,289,663.08 : x - Step 2: Convert to fraction form
7,911,412.84/10,917,704.10 = 4,289,663.08/x - Step 3: Cross multiply
7,911,412.84x = 10,917,704.10 × 4,289,663.08 - Step 4: Simplify right side
7,911,412.84x = 46,833,272,196,134.62 - Step 5: Solve for x
x = 46,833,272,196,134.62/7,911,412.84 - Step 6: Final answer
x = 5,919,710.32
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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.