Finding the Fourth Proportional to 6,489,781.97, 8,955,536.72 and 3,549,018.74
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Solution
The fourth proportional to 6,489,781.97, 8,955,536.72 and 3,549,018.74 is: 4,897,447.67
Step by Step Solution
- Step 1: Write the proportion equation
6,489,781.97 : 8,955,536.72 = 3,549,018.74 : x - Step 2: Convert to fraction form
6,489,781.97/8,955,536.72 = 3,549,018.74/x - Step 3: Cross multiply
6,489,781.97x = 8,955,536.72 × 3,549,018.74 - Step 4: Simplify right side
6,489,781.97x = 31,783,367,583,515.36 - Step 5: Solve for x
x = 31,783,367,583,515.36/6,489,781.97 - Step 6: Final answer
x = 4,897,447.67
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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.