Finding the Fourth Proportional to 7,879,128.66, 10,873,363.92 and 4,441,368.78
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Solution
The fourth proportional to 7,879,128.66, 10,873,363.92 and 4,441,368.78 is: 6,129,182.70
Step by Step Solution
- Step 1: Write the proportion equation
7,879,128.66 : 10,873,363.92 = 4,441,368.78 : x - Step 2: Convert to fraction form
7,879,128.66/10,873,363.92 = 4,441,368.78/x - Step 3: Cross multiply
7,879,128.66x = 10,873,363.92 × 4,441,368.78 - Step 4: Simplify right side
7,879,128.66x = 48,292,619,047,866.42 - Step 5: Solve for x
x = 48,292,619,047,866.42/7,879,128.66 - Step 6: Final answer
x = 6,129,182.70
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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.