Finding the Fourth Proportional to 28,120,263.67, 42,139,128.40 and 15,848,118.08
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Solution
The fourth proportional to 28,120,263.67, 42,139,128.40 and 15,848,118.08 is: 23,748,919.65
Step by Step Solution
- Step 1: Write the proportion equation
28,120,263.67 : 42,139,128.40 = 15,848,118.08 : x - Step 2: Convert to fraction form
28,120,263.67/42,139,128.40 = 15,848,118.08/x - Step 3: Cross multiply
28,120,263.67x = 42,139,128.40 × 15,848,118.08 - Step 4: Simplify right side
28,120,263.67x = 667,825,882,668,348.75 - Step 5: Solve for x
x = 667,825,882,668,348.75/28,120,263.67 - Step 6: Final answer
x = 23,748,919.65
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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.