Finding the Fourth Proportional to 42,005,214.72, 57,980,011.68 and 24,368,572.80
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Solution
The fourth proportional to 42,005,214.72, 57,980,011.68 and 24,368,572.80 is: 33,636,065.07
Step by Step Solution
- Step 1: Write the proportion equation
42,005,214.72 : 57,980,011.68 = 24,368,572.80 : x - Step 2: Convert to fraction form
42,005,214.72/57,980,011.68 = 24,368,572.80/x - Step 3: Cross multiply
42,005,214.72x = 57,980,011.68 × 24,368,572.80 - Step 4: Simplify right side
42,005,214.72x = 1,412,890,135,568,930.25 - Step 5: Solve for x
x = 1,412,890,135,568,930.25/42,005,214.72 - Step 6: Final answer
x = 33,636,065.07
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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.