Finding the Fourth Proportional to 19,319,158.62, 28,979,730.54 and 4,942,351.14
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Solution
The fourth proportional to 19,319,158.62, 28,979,730.54 and 4,942,351.14 is: 7,413,780.65
Step by Step Solution
- Step 1: Write the proportion equation
19,319,158.62 : 28,979,730.54 = 4,942,351.14 : x - Step 2: Convert to fraction form
19,319,158.62/28,979,730.54 = 4,942,351.14/x - Step 3: Cross multiply
19,319,158.62x = 28,979,730.54 × 4,942,351.14 - Step 4: Simplify right side
19,319,158.62x = 143,228,004,271,261.81 - Step 5: Solve for x
x = 143,228,004,271,261.81/19,319,158.62 - Step 6: Final answer
x = 7,413,780.65
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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.