Finding the Fourth Proportional to 19,121,308.18, 28,681,926.72 and 5,991,731.44
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Solution
The fourth proportional to 19,121,308.18, 28,681,926.72 and 5,991,731.44 is: 8,987,586.02
Step by Step Solution
- Step 1: Write the proportion equation
19,121,308.18 : 28,681,926.72 = 5,991,731.44 : x - Step 2: Convert to fraction form
19,121,308.18/28,681,926.72 = 5,991,731.44/x - Step 3: Cross multiply
19,121,308.18x = 28,681,926.72 × 5,991,731.44 - Step 4: Simplify right side
19,121,308.18x = 171,854,402,088,000.09 - Step 5: Solve for x
x = 171,854,402,088,000.09/19,121,308.18 - Step 6: Final answer
x = 8,987,586.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.