Finding the Fourth Proportional to 19,555,421.16, 26,986,768.74 and 10,854,152.68
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Solution
The fourth proportional to 19,555,421.16, 26,986,768.74 and 10,854,152.68 is: 14,978,890.30
Step by Step Solution
- Step 1: Write the proportion equation
19,555,421.16 : 26,986,768.74 = 10,854,152.68 : x - Step 2: Convert to fraction form
19,555,421.16/26,986,768.74 = 10,854,152.68/x - Step 3: Cross multiply
19,555,421.16x = 26,986,768.74 × 10,854,152.68 - Step 4: Simplify right side
19,555,421.16x = 292,918,508,243,811.19 - Step 5: Solve for x
x = 292,918,508,243,811.19/19,555,421.16 - Step 6: Final answer
x = 14,978,890.30
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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.