Finding the Fourth Proportional to 18,750,859.62, 28,127,372.01 and 7,236,386.63
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Solution
The fourth proportional to 18,750,859.62, 28,127,372.01 and 7,236,386.63 is: 10,854,997.74
Step by Step Solution
- Step 1: Write the proportion equation
18,750,859.62 : 28,127,372.01 = 7,236,386.63 : x - Step 2: Convert to fraction form
18,750,859.62/28,127,372.01 = 7,236,386.63/x - Step 3: Cross multiply
18,750,859.62x = 28,127,372.01 × 7,236,386.63 - Step 4: Simplify right side
18,750,859.62x = 203,540,538,767,012.81 - Step 5: Solve for x
x = 203,540,538,767,012.81/18,750,859.62 - Step 6: Final answer
x = 10,854,997.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.