Finding the Fourth Proportional to 5,378,206.72, 7,421,830.08 and 2,930,839.68
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Solution
The fourth proportional to 5,378,206.72, 7,421,830.08 and 2,930,839.68 is: 4,044,506.88
Step by Step Solution
- Step 1: Write the proportion equation
5,378,206.72 : 7,421,830.08 = 2,930,839.68 : x - Step 2: Convert to fraction form
5,378,206.72/7,421,830.08 = 2,930,839.68/x - Step 3: Cross multiply
5,378,206.72x = 7,421,830.08 × 2,930,839.68 - Step 4: Simplify right side
5,378,206.72x = 21,752,194,096,681.57 - Step 5: Solve for x
x = 21,752,194,096,681.57/5,378,206.72 - Step 6: Final answer
x = 4,044,506.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.