Finding the Fourth Proportional to 7,919,923.74, 10,929,491.91 and 4,298,251.74
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Solution
The fourth proportional to 7,919,923.74, 10,929,491.91 and 4,298,251.74 is: 5,931,585.85
Step by Step Solution
- Step 1: Write the proportion equation
7,919,923.74 : 10,929,491.91 = 4,298,251.74 : x - Step 2: Convert to fraction form
7,919,923.74/10,929,491.91 = 4,298,251.74/x - Step 3: Cross multiply
7,919,923.74x = 10,929,491.91 × 4,298,251.74 - Step 4: Simplify right side
7,919,923.74x = 46,977,707,619,473.43 - Step 5: Solve for x
x = 46,977,707,619,473.43/7,919,923.74 - Step 6: Final answer
x = 5,931,585.85
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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.