Finding the Fourth Proportional to 10,291,867.19, 14,202,798.69 and 5,645,690.43
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Solution
The fourth proportional to 10,291,867.19, 14,202,798.69 and 5,645,690.43 is: 7,791,064.85
Step by Step Solution
- Step 1: Write the proportion equation
10,291,867.19 : 14,202,798.69 = 5,645,690.43 : x - Step 2: Convert to fraction form
10,291,867.19/14,202,798.69 = 5,645,690.43/x - Step 3: Cross multiply
10,291,867.19x = 14,202,798.69 × 5,645,690.43 - Step 4: Simplify right side
10,291,867.19x = 80,184,604,691,151.12 - Step 5: Solve for x
x = 80,184,604,691,151.12/10,291,867.19 - Step 6: Final answer
x = 7,791,064.85
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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.