Finding the Fourth Proportional to 7,148,643.30, 10,728,280.71 and 2,888,848.44
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Solution
The fourth proportional to 7,148,643.30, 10,728,280.71 and 2,888,848.44 is: 4,335,420.82
Step by Step Solution
- Step 1: Write the proportion equation
7,148,643.30 : 10,728,280.71 = 2,888,848.44 : x - Step 2: Convert to fraction form
7,148,643.30/10,728,280.71 = 2,888,848.44/x - Step 3: Cross multiply
7,148,643.30x = 10,728,280.71 × 2,888,848.44 - Step 4: Simplify right side
7,148,643.30x = 30,992,376,992,965.59 - Step 5: Solve for x
x = 30,992,376,992,965.59/7,148,643.30 - Step 6: Final answer
x = 4,335,420.82
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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.