Finding the Fourth Proportional to 10,457,879.48, 14,433,585.18 and 8,712,781.62
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Solution
The fourth proportional to 10,457,879.48, 14,433,585.18 and 8,712,781.62 is: 12,025,064.54
Step by Step Solution
- Step 1: Write the proportion equation
10,457,879.48 : 14,433,585.18 = 8,712,781.62 : x - Step 2: Convert to fraction form
10,457,879.48/14,433,585.18 = 8,712,781.62/x - Step 3: Cross multiply
10,457,879.48x = 14,433,585.18 × 8,712,781.62 - Step 4: Simplify right side
10,457,879.48x = 125,756,675,667,008.38 - Step 5: Solve for x
x = 125,756,675,667,008.38/10,457,879.48 - Step 6: Final answer
x = 12,025,064.54
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1.5x scale
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.