Finding the Fourth Proportional to 6,387,521.36, 8,792,405.76 and 5,570,283.20
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Solution
The fourth proportional to 6,387,521.36, 8,792,405.76 and 5,570,283.20 is: 7,667,479.66
Step by Step Solution
- Step 1: Write the proportion equation
6,387,521.36 : 8,792,405.76 = 5,570,283.20 : x - Step 2: Convert to fraction form
6,387,521.36/8,792,405.76 = 5,570,283.20/x - Step 3: Cross multiply
6,387,521.36x = 8,792,405.76 × 5,570,283.20 - Step 4: Simplify right side
6,387,521.36x = 48,976,190,092,511.23 - Step 5: Solve for x
x = 48,976,190,092,511.23/6,387,521.36 - Step 6: Final answer
x = 7,667,479.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.