Finding the Fourth Proportional to 19,121,656.72, 28,684,219.29 and 5,289,482.08
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Solution
The fourth proportional to 19,121,656.72, 28,684,219.29 and 5,289,482.08 is: 7,934,702.84
Step by Step Solution
- Step 1: Write the proportion equation
19,121,656.72 : 28,684,219.29 = 5,289,482.08 : x - Step 2: Convert to fraction form
19,121,656.72/28,684,219.29 = 5,289,482.08/x - Step 3: Cross multiply
19,121,656.72x = 28,684,219.29 × 5,289,482.08 - Step 4: Simplify right side
19,121,656.72x = 151,724,663,913,245.31 - Step 5: Solve for x
x = 151,724,663,913,245.31/19,121,656.72 - Step 6: Final answer
x = 7,934,702.84
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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.