Finding the Fourth Proportional to 20,087,000.50, 27,720,257.52 and 10,919,840.08
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Solution
The fourth proportional to 20,087,000.50, 27,720,257.52 and 10,919,840.08 is: 15,069,486.31
Step by Step Solution
- Step 1: Write the proportion equation
20,087,000.50 : 27,720,257.52 = 10,919,840.08 : x - Step 2: Convert to fraction form
20,087,000.50/27,720,257.52 = 10,919,840.08/x - Step 3: Cross multiply
20,087,000.50x = 27,720,257.52 × 10,919,840.08 - Step 4: Simplify right side
20,087,000.50x = 302,700,779,094,817.38 - Step 5: Solve for x
x = 302,700,779,094,817.38/20,087,000.50 - Step 6: Final answer
x = 15,069,486.31
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1.5x scale
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.