Finding the Fourth Proportional to 31,676,421.08, 43,713,461.43 and 17,189,733.08
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Solution
The fourth proportional to 31,676,421.08, 43,713,461.43 and 17,189,733.08 is: 23,721,831.83
Step by Step Solution
- Step 1: Write the proportion equation
31,676,421.08 : 43,713,461.43 = 17,189,733.08 : x - Step 2: Convert to fraction form
31,676,421.08/43,713,461.43 = 17,189,733.08/x - Step 3: Cross multiply
31,676,421.08x = 43,713,461.43 × 17,189,733.08 - Step 4: Simplify right side
31,676,421.08x = 751,422,733,984,575 - Step 5: Solve for x
x = 751,422,733,984,575/31,676,421.08 - Step 6: Final answer
x = 23,721,831.83
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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.