Finding the Fourth Proportional to 19,319,239.68, 28,979,852.16 and 4,942,432.08
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Solution
The fourth proportional to 19,319,239.68, 28,979,852.16 and 4,942,432.08 is: 7,413,902.07
Step by Step Solution
- Step 1: Write the proportion equation
19,319,239.68 : 28,979,852.16 = 4,942,432.08 : x - Step 2: Convert to fraction form
19,319,239.68/28,979,852.16 = 4,942,432.08/x - Step 3: Cross multiply
19,319,239.68x = 28,979,852.16 × 4,942,432.08 - Step 4: Simplify right side
19,319,239.68x = 143,230,950,989,241.28 - Step 5: Solve for x
x = 143,230,950,989,241.28/19,319,239.68 - Step 6: Final answer
x = 7,413,902.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.