Finding the Fourth Proportional to 30,930,743.98, 42,679,681.74 and 17,875,481.84
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Solution
The fourth proportional to 30,930,743.98, 42,679,681.74 and 17,875,481.84 is: 24,665,422.74
Step by Step Solution
- Step 1: Write the proportion equation
30,930,743.98 : 42,679,681.74 = 17,875,481.84 : x - Step 2: Convert to fraction form
30,930,743.98/42,679,681.74 = 17,875,481.84/x - Step 3: Cross multiply
30,930,743.98x = 42,679,681.74 × 17,875,481.84 - Step 4: Simplify right side
30,930,743.98x = 762,919,875,880,349.62 - Step 5: Solve for x
x = 762,919,875,880,349.62/30,930,743.98 - Step 6: Final answer
x = 24,665,422.74
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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.